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iburadempa 1 year ago
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      README.md
  2. +59
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      mail_system.yml
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      mail_system/tasks/clamav.yml
  4. +133
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      mail_system/tasks/database.yml
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      mail_system/tasks/dovecot.yml
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      mail_system/tasks/main.yml
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      mail_system/tasks/postfix.yml
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      mail_system/tasks/remove_other_mtas.yml
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      mail_system/tasks/rspamd.yml
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      mail_system/templates/dovecot/10-auth.conf
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      mail_system/templates/dovecot/20-imap.conf
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      mail_system/templates/dovecot/90-quota.conf
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      mail_system/templates/dovecot/rspamd-learn-ham.sh
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      mail_system/templates/dovecot/rspamd-learn-spam.sh
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      mail_system/templates/dovecot/spam-to-folder.sieve
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      mail_system/templates/postfix/domains.cf
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      mail_system/templates/postfix/email_existence_check.cf
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      mail_system/templates/rspamd/antivirus.conf
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      mail_system/templates/rspamd/arc.conf
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      mail_system/templates/rspamd/classifier-bayes.conf
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README.md View File

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ansible role for debian buster setting up a mailserver with postfix, rspamd, dovecot and clamav and based on PostgreSQL Attention: user and domain administration (in PostgreSQL) is not covered here

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mail_system.yml View File

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# install a complete mail system with
#
# - postfix
# - dovecot
# - clamav (with unofficial signatures)
# - rspamd (integrating clamav)
#
# not included here: list server, roundcube
#
# Please edit the host's config (inventory/host_vars/${hostname}):
# Add a new dictionary 'mailserver':
#
# mailserver:
# postgresql:
# host: 127.0.0.1
# port: 5432
# dbname: mailserver
# username: mailserver
# password: !vault |
# $ANSIBLE_VAULT;1.1;AES256
# XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
# XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
# XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
# XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
# XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
# postfix:
# overwrite_config: no
# mynetworks: "10.0.0.0/24 [2a01:XXXX:XXXX:XXXX::]/64"
# dovecot:
# auth_default_realm: mymaindomain.org
#
# (Use ansible-vault encrypt_string zo encrypt the password.)
#
# TODOs after running this playbook:
#
# Configure mail DNS:
#
# - MX
# - PTR (IPv4 and IPv6)
#
# SPF, DMARC and DKIM DNS records should be created when adding a domain:
#
# - SPF (IN TXT "v=spf1 mx" or more)
# - DMARC (_dmarc IN TXT "v=DMARC1; p=reject; rua=mailto:admin@mymaindomain.org; adkim=s; aspf=s;")
# - DKIM (rspamadm dkim_keygen -d mymaindomain.org -s 20190911 -b 4096;
# get the DNS entry and save the private key
#
# Please open the firewall: open or DNAT tcp ports 25, 143, 587, 4190 to the host (incoming)
#
# Replace the ssl certificates with signed ones.
#
# Users and domains can be added to the PostgreSQL tables;
# code for that is not part of this playbook.

- name: install mail_system
user: root
hosts: mail
roles:
- mail_system

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mail_system/tasks/clamav.yml View File

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# install clamav
# we run freshclam (with daemons stopped) and then starting the daemons should work
# (avoiding 'clamav-daemon not started: "ConditionPathExistsGlob=/var/lib/clamav/daily.{c[vl]d,inc} was not met"')

- name: install clamav
apt:
name: "{{ packages }}"
vars:
packages:
- clamav
- clamav-daemon
- clamav-freshclam

- name: stop clamav daemons
systemd:
name: "{{ item }}"
state: stopped
loop:
- clamav-freshclam
- clamav-daemon

- name: run freshclam
shell: freshclam

- name: start clamav daemons
systemd:
name: "{{ item }}"
state: started
loop:
- clamav-daemon
- clamav-freshclam

- name: install clamav-unofficial-sigs, clamdscan
apt:
name: "{{ packages }}"
vars:
packages:
- clamav-unofficial-sigs
- clamdscan

- name: set clamav BytecodeSecurity to Paranoid
lineinfile:
path: /etc/clamav/clamd.conf
regexp: '^BytecodeSecurity'
line: 'BytecodeSecurity Paranoid'

- name: restart clamav-daemon
systemd:
name: clamav-daemon
state: restarted

+ 133
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mail_system/tasks/database.yml View File

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- name: apt install python3-psycopg2
apt:
name: python3-psycopg2
state: present

- name: database table domains
postgresql_table:
login_host: "{{ mailserver.postgresql.host }}"
port: "{{ mailserver.postgresql.port }}"
login_user: "{{ mailserver.postgresql.username }}"
login_password: "{{ mailserver.postgresql.password }}"
db: "{{ mailserver.postgresql.dbname }}"
ssl_mode: disable
name: domains
columns:
- id bigserial primary key
- name varchar(128) not null unique
- relay_transport text null

- name: database table users
postgresql_table:
login_host: "{{ mailserver.postgresql.host }}"
port: "{{ mailserver.postgresql.port }}"
login_user: "{{ mailserver.postgresql.username }}"
login_password: "{{ mailserver.postgresql.password }}"
db: "{{ mailserver.postgresql.dbname }}"
ssl_mode: disable
name: users
columns:
- id BIGSERIAL PRIMARY KEY
- domain_id BIGINT references domains(id) on delete cascade
- username VARCHAR(128) NOT NULL
- realname VARCHAR(250) NOT NULL
- password VARCHAR(128) NOT NULL
- suspend_submission BOOL NOT NULL DEFAULT false
- suspend_imap_reason TEXT NULL
- quota_storage_bytes BIGINT NOT NULL DEFAULT 100000000000
- quota_inbox_messages INT NOT NULL DEFAULT 500000
- unique(domain_id, username)

- name: database index users__domain_username
postgresql_idx:
login_host: "{{ mailserver.postgresql.host }}"
port: "{{ mailserver.postgresql.port }}"
login_user: "{{ mailserver.postgresql.username }}"
login_password: "{{ mailserver.postgresql.password }}"
db: "{{ mailserver.postgresql.dbname }}"
ssl_mode: disable
table: users
columns: domain_id, username
idxname: users__domain_username

- name: database table aliases
postgresql_table:
login_host: "{{ mailserver.postgresql.host }}"
port: "{{ mailserver.postgresql.port }}"
login_user: "{{ mailserver.postgresql.username }}"
login_password: "{{ mailserver.postgresql.password }}"
db: "{{ mailserver.postgresql.dbname }}"
ssl_mode: disable
name: aliases
columns:
- id bigserial primary key
- alias_domain_id bigint references domains(id) on delete cascade
- alias varchar(250) not null unique
- forwardings varchar(250)[] not null
- t timestamp without time zone not null default now()
- comment text null

- name: database index aliases__alias
postgresql_idx:
login_host: "{{ mailserver.postgresql.host }}"
port: "{{ mailserver.postgresql.port }}"
login_user: "{{ mailserver.postgresql.username }}"
login_password: "{{ mailserver.postgresql.password }}"
db: "{{ mailserver.postgresql.dbname }}"
ssl_mode: disable
table: aliases
columns: alias
idxname: aliases__alias

- name: database table shared_folders
postgresql_table:
login_host: "{{ mailserver.postgresql.host }}"
port: "{{ mailserver.postgresql.port }}"
login_user: "{{ mailserver.postgresql.username }}"
login_password: "{{ mailserver.postgresql.password }}"
db: "{{ mailserver.postgresql.dbname }}"
ssl_mode: disable
name: shared_folders
columns:
- id bigserial primary key
- from_user varchar(128) not null
- to_user varchar(128) not null
- dummy char(1) DEFAULT '1'

- name: database index shared_folders__from_to
postgresql_idx:
login_host: "{{ mailserver.postgresql.host }}"
port: "{{ mailserver.postgresql.port }}"
login_user: "{{ mailserver.postgresql.username }}"
login_password: "{{ mailserver.postgresql.password }}"
db: "{{ mailserver.postgresql.dbname }}"
ssl_mode: disable
table: shared_folders
columns: from_user, to_user
idxname: shared_folders__from_to

- name: database table shared_folders_anyone
postgresql_table:
login_host: "{{ mailserver.postgresql.host }}"
port: "{{ mailserver.postgresql.port }}"
login_user: "{{ mailserver.postgresql.username }}"
login_password: "{{ mailserver.postgresql.password }}"
db: "{{ mailserver.postgresql.dbname }}"
ssl_mode: disable
name: shared_folders_anyone
columns:
- id bigserial primary key
- from_user varchar(128) not null
- dummy char(1) DEFAULT '1'

- name: database index shared_folders_anyone__from
postgresql_idx:
login_host: "{{ mailserver.postgresql.host }}"
port: "{{ mailserver.postgresql.port }}"
login_user: "{{ mailserver.postgresql.username }}"
login_password: "{{ mailserver.postgresql.password }}"
db: "{{ mailserver.postgresql.dbname }}"
ssl_mode: disable
table: shared_folders_anyone
columns: from_user
idxname: shared_folders__from

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mail_system/tasks/dovecot.yml View File

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# here we assume that postfix.yml has run such that user 'mailstore' exists

- name: install dovecot packages
apt:
name: dovecot-imapd,dovecot-lmtpd,dovecot-pgsql,dovecot-managesieved,dovecot-lucene
state: present

- name: install dovecot config files
template:
src: "dovecot/{{ item }}"
dest: "/etc/dovecot/conf.d/{{ item }}"
owner: root
group: root
mode: 0644
force: yes
loop:
- 10-auth.conf
- auth-sql.conf.ext
- 10-mail.conf
- 10-master.conf
- 15-mailboxes.conf
- 20-lmtp.conf
- 20-imap.conf
- 90-sieve.conf
- 90-sieve-extprograms.conf
- 90-plugin.conf
- 90-acl.conf
- 90-quota.conf

- name: install more dovecot config files
template:
src: "dovecot/{{ item }}"
dest: "/etc/dovecot/{{ item }}"
owner: root
group: dovecot
mode: 0640
force: yes
loop:
- dovecot.conf
- dovecot-sql.conf.ext
- dovecot-dict-sql.conf.ext

- name: directories /etc/dovecot/sieve_before /etc/dovecot/sieve_after
file:
path: "/etc/dovecot/{{ item }}"
state: directory
owner: root
group: root
mode: 0755
loop:
- sieve_pipes
- sieve_filters
- sieve_execute
- sieve_before
- sieve_after

- name: file /etc/dovecot/sieve_after/spam-to-folder.sieve
template:
src: dovecot/spam-to-folder.sieve
dest: /etc/dovecot/sieve_after/spam-to-folder.sieve
owner: root
group: root
mode: 0644
force: yes

- name: files /etc/dovecot/sieve_pipes/*.sieve
template:
src: "dovecot/{{ item }}"
dest: "/etc/dovecot/sieve_pipes/{{ item }}"
owner: mailstore
group: mailstore
mode: 0600
force: yes
loop:
- learn-spam.sieve
- learn-ham.sieve

- name: files /etc/dovecot/sieve_pipes/*.sh
template:
src: "dovecot/{{ item }}"
dest: "/etc/dovecot/sieve_pipes/{{ item }}"
owner: mailstore
group: mailstore
mode: 0700
force: yes
loop:
- rspamd-learn-spam.sh
- rspamd-learn-ham.sh

- name: README files
template:
src: "dovecot/README_{{ item }}"
dest: "/etc/dovecot/sieve_{{ item }}/README"
owner: mailstore
group: mailstore
mode: 0600
force: yes
loop:
- filters
- execute
- before
- after

- name: restart dovecot
systemd:
name: dovecot
state: restarted

- name: compile sieve files
shell: "/usr/bin/sievec /etc/dovecot/{{ item }}"
loop:
- "sieve_after/spam-to-folder.sieve"
- "sieve_pipes/learn-spam.sieve"
- "sieve_pipes/learn-ham.sieve"

- name: permissions of .svbin
file:
path: "/etc/dovecot/{{ item }}"
owner: mailstore
group: mailstore
mode: 0600
loop:
- "sieve_after/spam-to-folder.sieve"
- "sieve_pipes/learn-spam.svbin"
- "sieve_pipes/learn-ham.svbin"

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mail_system/tasks/main.yml View File

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- include: remove_other_mtas.yml
- include: database.yml
- include: postfix.yml
- include: dovecot.yml
- include: clamav.yml
- include: rspamd.yml

+ 79
- 0
mail_system/tasks/postfix.yml View File

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- name: install postfix packages
apt:
name: postfix,postfix-pgsql,postfix-doc
state: present
update_cache: yes
install_recommends: no

- name: divert /etc/postfix/main.cf
shell: dpkg-divert --add --rename --divert /etc/postfix/main.cf.orig /etc/postfix/main.cf

- name: divert /etc/postfix/master.cf
shell: dpkg-divert --add --rename --divert /etc/postfix/master.cf.orig /etc/postfix/master.cf

- name: group 'mailstore'
group:
name: mailstore
state: present
system: yes
gid: 5000

- name: user 'mailstore'
user:
name: mailstore
group: mailstore
state: present
system: yes
uid: 5000
create_home: no
home: /srv/mailstore
password: '!'
password_lock: yes
comment: created by ansible

- name: directories /srv/mailstore /srv/mailstore/role_specific
file:
path: "{{ item }}"
state: directory
owner: mailstore
group: mailstore
mode: 0755
loop:
- /srv/mailstore
- /srv/mailstore/role_specific
- /srv/mailstore/role_specific/roles

- name: postfix configuration files
template:
src: "postfix/{{ item }}"
dest: "/etc/postfix/{{ item }}"
owner: root
group: root
mode: 0644
force: "{{ mailserver.postfix.overwrite_config }}"
loop:
- main.cf
- master.cf
- header_checks

- name: postfix database queries
template:
src: "postfix/{{ item }}"
dest: "/etc/postfix/{{ item }}"
owner: root
group: root
mode: 0600
force: yes
loop:
- domains.cf
- mailboxes.cf
- aliases.cf
- email_existence_check.cf
- relay_domains.cf
- relay_recipient_maps.cf
- transport_maps.cf

- name: restart postfix
systemd:
name: postfix
state: restarted

+ 10
- 0
mail_system/tasks/remove_other_mtas.yml View File

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- name: find all installed versions of mail-transport-agent except postfix
shell: aptitude search '~i~Pmail-transport-agent' | sed -e 's/^...\(.*\)/\1/' | awk '{ print $1 }' | grep -v postfix || /bin/true
register: mtas

- name: purge MTAs other than postfix
apt:
name: "{{ item }}"
state: absent
purge: yes
loop: "{{ mtas.stdout_lines|list }}"

+ 81
- 0
mail_system/tasks/rspamd.yml View File

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- name: apt install rspamd
apt:
name: rspamd
state: present

# postfix integration

- name: postfix setting milter_mail_macros
lineinfile:
path: /etc/postfix/main.cf
regexp: '^milter_mail_macros='
line: 'milter_mail_macros=i {mail_addr} {client_addr} {client_name} {auth_authen}'
insertafter: '^# rspamd'

- name: postfix setting milter_protocol
lineinfile:
path: /etc/postfix/main.cf
regexp: '^milter_protocol='
line: 'milter_protocol=6'
insertafter: '^# rspamd'

- name: postfix setting non_smtpd_milters
lineinfile:
path: /etc/postfix/main.cf
regexp: '^non_smtpd_milters='
line: 'non_smtpd_milters=inet:127.0.0.1:11332'
insertafter: '^# rspamd'

- name: postfix setting smtpd_milters
lineinfile:
path: /etc/postfix/main.cf
regexp: '^smtpd_milters='
line: 'smtpd_milters=inet:127.0.0.1:11332'
insertafter: '^# rspamd'

- name: restart postfix
systemd:
name: postfix
state: restarted

# rspamd configuration

- name: rspamd configure extended_spam_headers true
template:
src: "rspamd/{{ item }}"
dest: "/etc/rspamd/override.d/{{ item }}"
owner: root
group: root
mode: 0644
loop:
- milter_headers.conf
- classifier-bayes.conf
- antivirus.conf

# install dkim

- name: mkdir /var/lib/rspamd/dkim
file:
path: /var/lib/rspamd/dkim
state: directory
owner: _rspamd
group: _rspamd
mode: '0755'

- name: rspamd config dkim_signing.conf and arc.conf
template:
src: "rspamd/{{ item }}"
dest: "/etc/rspamd/local.d/{{ item }}"
owner: root
group: root
mode: 0644
loop:
- dkim_signing.conf
- arc.conf

# restart rspamd

- name: restart rspamd
systemd:
name: rspamd
state: restarted

+ 133
- 0
mail_system/templates/dovecot/10-auth.conf View File

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# THIS FILE IS CONTROLLED BY ANSIBLE - DO NOT CHANGE IN DEPLOYMENT!


##
## Authentication processes
##

# Disable LOGIN command and all other plaintext authentications unless
# SSL/TLS is used (LOGINDISABLED capability). Note that if the remote IP
# matches the local IP (ie. you're connecting from the same computer), the
# connection is considered secure and plaintext authentication is allowed.
# See also ssl=required setting.
#disable_plaintext_auth = yes

# Authentication cache size (e.g. 10M). 0 means it's disabled. Note that
# bsdauth, PAM and vpopmail require cache_key to be set for caching to be used.
#auth_cache_size = 0
# Time to live for cached data. After TTL expires the cached record is no
# longer used, *except* if the main database lookup returns internal failure.
# We also try to handle password changes automatically: If user's previous
# authentication was successful, but this one wasn't, the cache isn't used.
# For now this works only with plaintext authentication.
#auth_cache_ttl = 1 hour
# TTL for negative hits (user not found, password mismatch).
# 0 disables caching them completely.
#auth_cache_negative_ttl = 1 hour

# Space separated list of realms for SASL authentication mechanisms that need
# them. You can leave it empty if you don't want to support multiple realms.
# Many clients simply use the first one listed here, so keep the default realm
# first.
#auth_realms =

# Default realm/domain to use if none was specified. This is used for both
# SASL realms and appending @domain to username in plaintext logins.
#auth_default_realm =
auth_default_realm = {{ mailserver.dovecot.auth_default_realm }}

# List of allowed characters in username. If the user-given username contains
# a character not listed in here, the login automatically fails. This is just
# an extra check to make sure user can't exploit any potential quote escaping
# vulnerabilities with SQL/LDAP databases. If you want to allow all characters,
# set this value to empty.
#auth_username_chars = abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ01234567890.-_@

# Username character translations before it's looked up from databases. The
# value contains series of from -> to characters. For example "#@/@" means
# that '#' and '/' characters are translated to '@'.
#auth_username_translation =

# Username formatting before it's looked up from databases. You can use
# the standard variables here, eg. %Lu would lowercase the username, %n would
# drop away the domain if it was given, or "%n-AT-%d" would change the '@' into
# "-AT-". This translation is done after auth_username_translation changes.
#auth_username_format = %Lu

# If you want to allow master users to log in by specifying the master
# username within the normal username string (ie. not using SASL mechanism's
# support for it), you can specify the separator character here. The format
# is then <username><separator><master username>. UW-IMAP uses "*" as the
# separator, so that could be a good choice.
#auth_master_user_separator =

# Username to use for users logging in with ANONYMOUS SASL mechanism
#auth_anonymous_username = anonymous

# Maximum number of dovecot-auth worker processes. They're used to execute
# blocking passdb and userdb queries (eg. MySQL and PAM). They're
# automatically created and destroyed as needed.
#auth_worker_max_count = 30

# Host name to use in GSSAPI principal names. The default is to use the
# name returned by gethostname(). Use "$ALL" (with quotes) to allow all keytab
# entries.
#auth_gssapi_hostname =

# Kerberos keytab to use for the GSSAPI mechanism. Will use the system
# default (usually /etc/krb5.keytab) if not specified. You may need to change
# the auth service to run as root to be able to read this file.
#auth_krb5_keytab =

# Do NTLM and GSS-SPNEGO authentication using Samba's winbind daemon and
# ntlm_auth helper. <doc/wiki/Authentication/Mechanisms/Winbind.txt>
#auth_use_winbind = no

# Path for Samba's ntlm_auth helper binary.
#auth_winbind_helper_path = /usr/bin/ntlm_auth

# Time to delay before replying to failed authentications.
#auth_failure_delay = 2 secs

# Require a valid SSL client certificate or the authentication fails.
#auth_ssl_require_client_cert = no

# Take the username from client's SSL certificate, using
# X509_NAME_get_text_by_NID() which returns the subject's DN's
# CommonName.
#auth_ssl_username_from_cert = no

# Space separated list of wanted authentication mechanisms:
# plain login digest-md5 cram-md5 ntlm rpa apop anonymous gssapi otp skey
# gss-spnego
# NOTE: See also disable_plaintext_auth setting.
auth_mechanisms = plain

##
## Password and user databases
##

#
# Password database is used to verify user's password (and nothing more).
# You can have multiple passdbs and userdbs. This is useful if you want to
# allow both system users (/etc/passwd) and virtual users to login without
# duplicating the system users into virtual database.
#
# <doc/wiki/PasswordDatabase.txt>
#
# User database specifies where mails are located and what user/group IDs
# own them. For single-UID configuration use "static" userdb.
#
# <doc/wiki/UserDatabase.txt>

#!include auth-deny.conf.ext
#!include auth-master.conf.ext

#!include auth-system.conf.ext
!include auth-sql.conf.ext
#!include auth-ldap.conf.ext
#!include auth-passwdfile.conf.ext
#!include auth-checkpassword.conf.ext
#!include auth-vpopmail.conf.ext
#!include auth-static.conf.ext


+ 461
- 0
mail_system/templates/dovecot/10-mail.conf View File

@@ -0,0 +1,461 @@
# THIS FILE IS CONTROLLED BY ANSIBLE - DO NOT CHANGE IN DEPLOYMENT!


##
## Mailbox locations and namespaces
##

# Location for users' mailboxes. The default is empty, which means that Dovecot
# tries to find the mailboxes automatically. This won't work if the user
# doesn't yet have any mail, so you should explicitly tell Dovecot the full
# location.
#
# If you're using mbox, giving a path to the INBOX file (eg. /var/mail/%u)
# isn't enough. You'll also need to tell Dovecot where the other mailboxes are
# kept. This is called the "root mail directory", and it must be the first
# path given in the mail_location setting.
#
# There are a few special variables you can use, eg.:
#
# %u - username
# %n - user part in user@domain, same as %u if there's no domain
# %d - domain part in user@domain, empty if there's no domain
# %h - home directory
#
# See doc/wiki/Variables.txt for full list. Some examples:
#
# mail_location = maildir:~/Maildir
# mail_location = mbox:~/mail:INBOX=/var/mail/%u
# mail_location = mbox:/var/mail/%d/%1n/%n:INDEX=/var/indexes/%d/%1n/%n
#
# <doc/wiki/MailLocation.txt>
#
#mail_location = mbox:~/mail:INBOX=/var/mail/%u
mail_location = maildir:/srv/mailstore/%d/%n/Maildir:LAYOUT=fs

# If you need to set multiple mailbox locations or want to change default
# namespace settings, you can do it by defining namespace sections.
#
# You can have private, shared and public namespaces. Private namespaces
# are for user's personal mails. Shared namespaces are for accessing other
# users' mailboxes that have been shared. Public namespaces are for shared
# mailboxes that are managed by sysadmin. If you create any shared or public
# namespaces you'll typically want to enable ACL plugin also, otherwise all
# users can access all the shared mailboxes, assuming they have permissions
# on filesystem level to do so.
namespace inbox {
# Namespace type: private, shared or public
#type = private

# Hierarchy separator to use. You should use the same separator for all
# namespaces or some clients get confused. '/' is usually a good one.
# The default however depends on the underlying mail storage format.
#separator =
separator = /

# Prefix required to access this namespace. This needs to be different for
# all namespaces. For example "Public/".
#prefix =

# Physical location of the mailbox. This is in same format as
# mail_location, which is also the default for it.
#location =

# There can be only one INBOX, and this setting defines which namespace
# has it.
inbox = yes

# If namespace is hidden, it's not advertised to clients via NAMESPACE
# extension. You'll most likely also want to set list=no. This is mostly
# useful when converting from another server with different namespaces which
# you want to deprecate but still keep working. For example you can create
# hidden namespaces with prefixes "~/mail/", "~%u/mail/" and "mail/".
#hidden = no

# Show the mailboxes under this namespace with LIST command. This makes the
# namespace visible for clients that don't support NAMESPACE extension.
# "children" value lists child mailboxes, but hides the namespace prefix.
#list = yes

# Namespace handles its own subscriptions. If set to "no", the parent
# namespace handles them (empty prefix should always have this as "yes")
#subscriptions = yes

# See 15-mailboxes.conf for definitions of special mailboxes.
}

# Example shared namespace configuration
#namespace {
#type = shared
#separator = /

# Mailboxes are visible under "shared/user@domain/"
# %%n, %%d and %%u are expanded to the destination user.
#prefix = shared/%%u/

# Mail location for other users' mailboxes. Note that %variables and ~/
# expands to the logged in user's data. %%n, %%d, %%u and %%h expand to the
# destination user's data.
#location = maildir:%%h/Maildir:INDEX=~/Maildir/shared/%%u

# Use the default namespace for saving subscriptions.
#subscriptions = no

# List the shared/ namespace only if there are visible shared mailboxes.
#list = children
#}
namespace shared {
type = shared
separator = /
prefix = shared/%%d/%%n/
# a) Per-user seen flags. Maildir indexes are shared. (INDEXPVT requires v2.2+)
#location = maildir:%%h/Maildir:INDEXPVT=~/Maildir/shared/%%d/%%n/
location = maildir:/srv/mailstore/%%d/%%n/Maildir:LAYOUT=fs:INDEXPVT=~/shared/%%d/%%n/
# b) Per-user seen flags. Maildir indexes are not shared. If users have direct filesystem level access to their mails, this is a safer option:
#location = maildir:%%h/Maildir:INDEX=~/Maildir/shared/%%u:INDEXPVT=~/Maildir/shared/%%u
subscriptions = no
list = yes
inbox = no
}
namespace roles {
type = shared
separator = /
prefix = roles/
# a) Per-user seen flags. Maildir indexes are shared. (INDEXPVT requires v2.2+)
#location = maildir:%%h/Maildir:INDEXPVT=~/Maildir/shared/%%d/%%n/
location = maildir:/srv/mailstore/role_specific/roles/Maildir:LAYOUT=fs:INDEXPVT=~/role_specific/roles/
# b) Per-user seen flags. Maildir indexes are not shared. If users have direct filesystem level access to their$
#location = maildir:%%h/Maildir:INDEX=~/Maildir/shared/%%u:INDEXPVT=~/Maildir/shared/%%u
subscriptions = no
list = yes
inbox = no
}
namespace virtual {
separator = /
prefix = virtual/
location = virtual:/srv/mailstore/%d/%n/Maildir_virtual
}
# Should shared INBOX be visible as "shared/user" or "shared/user/INBOX"?
#mail_shared_explicit_inbox = no

# System user and group used to access mails. If you use multiple, userdb
# can override these by returning uid or gid fields. You can use either numbers
# or names. <doc/wiki/UserIds.txt>
#mail_uid =
#mail_gid =
mail_uid = mailstore
mail_gid = mailstore

# Group to enable temporarily for privileged operations. Currently this is
# used only with INBOX when either its initial creation or dotlocking fails.
# Typically this is set to "mail" to give access to /var/mail.
mail_privileged_group = mail

# Grant access to these supplementary groups for mail processes. Typically
# these are used to set up access to shared mailboxes. Note that it may be
# dangerous to set these if users can create symlinks (e.g. if "mail" group is
# set here, ln -s /var/mail ~/mail/var could allow a user to delete others'
# mailboxes, or ln -s /secret/shared/box ~/mail/mybox would allow reading it).
#mail_access_groups =

# Allow full filesystem access to clients. There's no access checks other than
# what the operating system does for the active UID/GID. It works with both
# maildir and mboxes, allowing you to prefix mailboxes names with eg. /path/
# or ~user/.
#mail_full_filesystem_access = no

# Dictionary for key=value mailbox attributes. This is used for example by
# URLAUTH and METADATA extensions.
#mail_attribute_dict =

# A comment or note that is associated with the server. This value is
# accessible for authenticated users through the IMAP METADATA server
# entry "/shared/comment".
#mail_server_comment = ""

# Indicates a method for contacting the server administrator. According to
# RFC 5464, this value MUST be a URI (e.g., a mailto: or tel: URL), but that
# is currently not enforced. Use for example mailto:admin@example.com. This
# value is accessible for authenticated users through the IMAP METADATA server
# entry "/shared/admin".
#mail_server_admin =

##
## Mail processes
##

# Don't use mmap() at all. This is required if you store indexes to shared
# filesystems (NFS or clustered filesystem).
#mmap_disable = no

# Rely on O_EXCL to work when creating dotlock files. NFS supports O_EXCL
# since version 3, so this should be safe to use nowadays by default.
#dotlock_use_excl = yes

# When to use fsync() or fdatasync() calls:
# optimized (default): Whenever necessary to avoid losing important data
# always: Useful with e.g. NFS when write()s are delayed
# never: Never use it (best performance, but crashes can lose data)
#mail_fsync = optimized

# Locking method for index files. Alternatives are fcntl, flock and dotlock.
# Dotlocking uses some tricks which may create more disk I/O than other locking
# methods. NFS users: flock doesn't work, remember to change mmap_disable.
#lock_method = fcntl

# Directory where mails can be temporarily stored. Usually it's used only for
# mails larger than >= 128 kB. It's used by various parts of Dovecot, for
# example LDA/LMTP while delivering large mails or zlib plugin for keeping
# uncompressed mails.
#mail_temp_dir = /tmp

# Valid UID range for users, defaults to 500 and above. This is mostly
# to make sure that users can't log in as daemons or other system users.
# Note that denying root logins is hardcoded to dovecot binary and can't
# be done even if first_valid_uid is set to 0.
#first_valid_uid = 500
#last_valid_uid = 0

# Valid GID range for users, defaults to non-root/wheel. Users having
# non-valid GID as primary group ID aren't allowed to log in. If user
# belongs to supplementary groups with non-valid GIDs, those groups are
# not set.
#first_valid_gid = 1
#last_valid_gid = 0

# Maximum allowed length for mail keyword name. It's only forced when trying
# to create new keywords.
#mail_max_keyword_length = 50

# ':' separated list of directories under which chrooting is allowed for mail
# processes (ie. /var/mail will allow chrooting to /var/mail/foo/bar too).
# This setting doesn't affect login_chroot, mail_chroot or auth chroot
# settings. If this setting is empty, "/./" in home dirs are ignored.
# WARNING: Never add directories here which local users can modify, that
# may lead to root exploit. Usually this should be done only if you don't
# allow shell access for users. <doc/wiki/Chrooting.txt>
#valid_chroot_dirs =

# Default chroot directory for mail processes. This can be overridden for
# specific users in user database by giving /./ in user's home directory
# (eg. /home/./user chroots into /home). Note that usually there is no real
# need to do chrooting, Dovecot doesn't allow users to access files outside
# their mail directory anyway. If your home directories are prefixed with
# the chroot directory, append "/." to mail_chroot. <doc/wiki/Chrooting.txt>
#mail_chroot =

# UNIX socket path to master authentication server to find users.
# This is used by imap (for shared users) and lda.
#auth_socket_path = /var/run/dovecot/auth-userdb

# Directory where to look up mail plugins.
#mail_plugin_dir = /usr/lib/dovecot/modules

# Space separated list of plugins to load for all services. Plugins specific to
# IMAP, LDA, etc. are added to this list in their own .conf files.
#mail_plugins =
mail_plugins = acl quota fts fts_lucene virtual

##
## Mailbox handling optimizations
##

# Mailbox list indexes can be used to optimize IMAP STATUS commands. They are
# also required for IMAP NOTIFY extension to be enabled.
#mailbox_list_index = yes

# Trust mailbox list index to be up-to-date. This reduces disk I/O at the cost
# of potentially returning out-of-date results after e.g. server crashes.
# The results will be automatically fixed once the folders are opened.
#mailbox_list_index_very_dirty_syncs = yes

# Should INBOX be kept up-to-date in the mailbox list index? By default it's
# not, because most of the mailbox accesses will open INBOX anyway.
#mailbox_list_index_include_inbox = no

# The minimum number of mails in a mailbox before updates are done to cache
# file. This allows optimizing Dovecot's behavior to do less disk writes at
# the cost of more disk reads.
#mail_cache_min_mail_count = 0

# When IDLE command is running, mailbox is checked once in a while to see if
# there are any new mails or other changes. This setting defines the minimum
# time to wait between those checks. Dovecot can also use inotify and
# kqueue to find out immediately when changes occur.
#mailbox_idle_check_interval = 30 secs

# Save mails with CR+LF instead of plain LF. This makes sending those mails
# take less CPU, especially with sendfile() syscall with Linux and FreeBSD.
# But it also creates a bit more disk I/O which may just make it slower.
# Also note that if other software reads the mboxes/maildirs, they may handle
# the extra CRs wrong and cause problems.
#mail_save_crlf = no

# Max number of mails to keep open and prefetch to memory. This only works with
# some mailbox formats and/or operating systems.
#mail_prefetch_count = 0

# How often to scan for stale temporary files and delete them (0 = never).
# These should exist only after Dovecot dies in the middle of saving mails.
#mail_temp_scan_interval = 1w

# How many slow mail accesses sorting can perform before it returns failure.
# With IMAP the reply is: NO [LIMIT] Requested sort would have taken too long.
# The untagged SORT reply is still returned, but it's likely not correct.
#mail_sort_max_read_count = 0

protocol !indexer-worker {
# If folder vsize calculation requires opening more than this many mails from
# disk (i.e. mail sizes aren't in cache already), return failure and finish
# the calculation via indexer process. Disabled by default. This setting must
# be 0 for indexer-worker processes.
#mail_vsize_bg_after_count = 0
mail_vsize_bg_after_count = 100
}

##
## Maildir-specific settings
##

# By default LIST command returns all entries in maildir beginning with a dot.
# Enabling this option makes Dovecot return only entries which are directories.
# This is done by stat()ing each entry, so it causes more disk I/O.
# (For systems setting struct dirent->d_type, this check is free and it's
# done always regardless of this setting)
#maildir_stat_dirs = no

# When copying a message, do it with hard links whenever possible. This makes
# the performance much better, and it's unlikely to have any side effects.
#maildir_copy_with_hardlinks = yes

# Assume Dovecot is the only MUA accessing Maildir: Scan cur/ directory only
# when its mtime changes unexpectedly or when we can't find the mail otherwise.
#maildir_very_dirty_syncs = no

# If enabled, Dovecot doesn't use the S=<size> in the Maildir filenames for
# getting the mail's physical size, except when recalculating Maildir++ quota.
# This can be useful in systems where a lot of the Maildir filenames have a
# broken size. The performance hit for enabling this is very small.
#maildir_broken_filename_sizes = no

# Always move mails from new/ directory to cur/, even when the \Recent flags
# aren't being reset.
#maildir_empty_new = no

##
## mbox-specific settings
##

# Which locking methods to use for locking mbox. There are four available:
# dotlock: Create <mailbox>.lock file. This is the oldest and most NFS-safe
# solution. If you want to use /var/mail/ like directory, the users
# will need write access to that directory.
# dotlock_try: Same as dotlock, but if it fails because of permissions or
# because there isn't enough disk space, just skip it.
# fcntl : Use this if possible. Works with NFS too if lockd is used.
# flock : May not exist in all systems. Doesn't work with NFS.
# lockf : May not exist in all systems. Doesn't work with NFS.
#
# You can use multiple locking methods; if you do the order they're declared
# in is important to avoid deadlocks if other MTAs/MUAs are using multiple
# locking methods as well. Some operating systems don't allow using some of
# them simultaneously.
#
# The Debian value for mbox_write_locks differs from upstream Dovecot. It is
# changed to be compliant with Debian Policy (section 11.6) for NFS safety.
# Dovecot: mbox_write_locks = dotlock fcntl
# Debian: mbox_write_locks = fcntl dotlock
#
#mbox_read_locks = fcntl
#mbox_write_locks = fcntl dotlock

# Maximum time to wait for lock (all of them) before aborting.
#mbox_lock_timeout = 5 mins

# If dotlock exists but the mailbox isn't modified in any way, override the
# lock file after this much time.
#mbox_dotlock_change_timeout = 2 mins

# When mbox changes unexpectedly we have to fully read it to find out what
# changed. If the mbox is large this can take a long time. Since the change
# is usually just a newly appended mail, it'd be faster to simply read the
# new mails. If this setting is enabled, Dovecot does this but still safely
# fallbacks to re-reading the whole mbox file whenever something in mbox isn't
# how it's expected to be. The only real downside to this setting is that if
# some other MUA changes message flags, Dovecot doesn't notice it immediately.
# Note that a full sync is done with SELECT, EXAMINE, EXPUNGE and CHECK
# commands.
#mbox_dirty_syncs = yes

# Like mbox_dirty_syncs, but don't do full syncs even with SELECT, EXAMINE,
# EXPUNGE or CHECK commands. If this is set, mbox_dirty_syncs is ignored.
#mbox_very_dirty_syncs = no

# Delay writing mbox headers until doing a full write sync (EXPUNGE and CHECK
# commands and when closing the mailbox). This is especially useful for POP3
# where clients often delete all mails. The downside is that our changes
# aren't immediately visible to other MUAs.
#mbox_lazy_writes = yes

# If mbox size is smaller than this (e.g. 100k), don't write index files.
# If an index file already exists it's still read, just not updated.
#mbox_min_index_size = 0

# Mail header selection algorithm to use for MD5 POP3 UIDLs when
# pop3_uidl_format=%m. For backwards compatibility we use apop3d inspired
# algorithm, but it fails if the first Received: header isn't unique in all
# mails. An alternative algorithm is "all" that selects all headers.
#mbox_md5 = apop3d

##
## mdbox-specific settings
##

# Maximum dbox file size until it's rotated.
#mdbox_rotate_size = 10M

# Maximum dbox file age until it's rotated. Typically in days. Day begins
# from midnight, so 1d = today, 2d = yesterday, etc. 0 = check disabled.
#mdbox_rotate_interval = 0

# When creating new mdbox files, immediately preallocate their size to
# mdbox_rotate_size. This setting currently works only in Linux with some
# filesystems (ext4, xfs).
#mdbox_preallocate_space = no

##
## Mail attachments
##

# sdbox and mdbox support saving mail attachments to external files, which
# also allows single instance storage for them. Other backends don't support
# this for now.

# Directory root where to store mail attachments. Disabled, if empty.
#mail_attachment_dir =

# Attachments smaller than this aren't saved externally. It's also possible to
# write a plugin to disable saving specific attachments externally.
#mail_attachment_min_size = 128k

# Filesystem backend to use for saving attachments:
# posix : No SiS done by Dovecot (but this might help FS's own deduplication)
# sis posix : SiS with immediate byte-by-byte comparison during saving
# sis-queue posix : SiS with delayed comparison and deduplication
#mail_attachment_fs = sis posix

# Hash format to use in attachment filenames. You can add any text and
# variables: %{md4}, %{md5}, %{sha1}, %{sha256}, %{sha512}, %{size}.
# Variables can be truncated, e.g. %{sha256:80} returns only first 80 bits
#mail_attachment_hash = %{sha1}

# Settings to control adding $HasAttachment or $HasNoAttachment keywords.
# By default, all MIME parts with Content-Disposition=attachment, or inlines
# with filename parameter are consired attachments.
# add-flags-on-save - Add the keywords when saving new mails.
# content-type=type or !type - Include/exclude content type. Excluding will
# never consider the matched MIME part as attachment. Including will only
# negate an exclusion (e.g. content-type=!foo/* content-type=foo/bar).
# exclude-inlined - Exclude any Content-Disposition=inline MIME part.
#mail_attachment_detection_options =


+ 154
- 0
mail_system/templates/dovecot/10-master.conf View File

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# THIS FILE IS CONTROLLED BY ANSIBLE - DO NOT CHANGE IN DEPLOYMENT!


#default_process_limit = 100
#default_client_limit = 1000

# Default VSZ (virtual memory size) limit for service processes. This is mainly
# intended to catch and kill processes that leak memory before they eat up
# everything.
#default_vsz_limit = 256M
# for virtual mailbox 'all' we need more memory
default_vsz_limit = 1G

# Login user is internally used by login processes. This is the most untrusted
# user in Dovecot system. It shouldn't have access to anything at all.
#default_login_user = dovenull

# Internal user is used by unprivileged processes. It should be separate from
# login user, so that login processes can't disturb other processes.
#default_internal_user = dovecot

service imap-login {
inet_listener imap {
#port = 143
}
inet_listener imaps {
#port = 993
#ssl = yes
}

# Number of connections to handle before starting a new process. Typically
# the only useful values are 0 (unlimited) or 1. 1 is more secure, but 0
# is faster. <doc/wiki/LoginProcess.txt>
#service_count = 1

# Number of processes to always keep waiting for more connections.
#process_min_avail = 0

# If you set service_count=0, you probably need to grow this.
#vsz_limit = $default_vsz_limit
}

service pop3-login {
inet_listener pop3 {
#port = 110
}
inet_listener pop3s {
#port = 995
#ssl = yes
}
}

service submission-login {
inet_listener submission {
#port = 587
}
}

service lmtp {
unix_listener /var/spool/postfix/private/dovecot-lmtp {
group = postfix
mode = 0600
user = postfix
}
# unix_listener lmtp {
# #mode = 0666
# }

# Create inet listener only if you can't use the above UNIX socket
#inet_listener lmtp {
# Avoid making LMTP visible for the entire internet
#address =
#port =
#}
}

service imap {
# Most of the memory goes to mmap()ing files. You may need to increase this
# limit if you have huge mailboxes.
#vsz_limit = $default_vsz_limit

# Max. number of IMAP processes (connections)
#process_limit = 1024
}

service pop3 {
# Max. number of POP3 processes (connections)
#process_limit = 1024
}

service submission {
# Max. number of SMTP Submission processes (connections)
#process_limit = 1024
}

service auth {
# auth_socket_path points to this userdb socket by default. It's typically
# used by dovecot-lda, doveadm, possibly imap process, etc. Users that have
# full permissions to this socket are able to get a list of all usernames and
# get the results of everyone's userdb lookups.
#
# The default 0666 mode allows anyone to connect to the socket, but the
# userdb lookups will succeed only if the userdb returns an "uid" field that
# matches the caller process's UID. Also if caller's uid or gid matches the
# socket's uid or gid the lookup succeeds. Anything else causes a failure.
#
# To give the caller full permissions to lookup all users, set the mode to
# something else than 0666 and Dovecot lets the kernel enforce the
# permissions (e.g. 0777 allows everyone full permissions).
unix_listener auth-userdb {
#mode = 0666
#user =
#group =
}

# Postfix smtp-auth
#unix_listener /var/spool/postfix/private/auth {
# mode = 0666
#}
unix_listener /var/spool/postfix/private/auth {
mode = 0660
user = postfix
group = postfix
}

# Auth process is run as this user.
#user = $default_internal_user
}

service auth-worker {
# Auth worker process is run as root by default, so that it can access
# /etc/shadow. If this isn't necessary, the user should be changed to
# $default_internal_user.
#user = root
}

service dict {
# If dict proxy is used, mail processes should have access to its socket.
# For example: mode=0660, group=vmail and global mail_access_groups=vmail
unix_listener dict {
mode = 0600
user = mailstore
group = mailstore
}
}

service quota-status {
executable = quota-status -p postfix
inet_listener {
port = 12480
# You can choose any port you want
}
client_limit = 1
}

+ 86
- 0
mail_system/templates/dovecot/15-mailboxes.conf View File

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# THIS FILE IS CONTROLLED BY ANSIBLE - DO NOT CHANGE IN DEPLOYMENT!


##
## Mailbox definitions
##

# Each mailbox is specified in a separate mailbox section. The section name
# specifies the mailbox name. If it has spaces, you can put the name
# "in quotes". These sections can contain the following mailbox settings:
#
# auto:
# Indicates whether the mailbox with this name is automatically created
# implicitly when it is first accessed. The user can also be automatically
# subscribed to the mailbox after creation. The following values are
# defined for this setting:
#
# no - Never created automatically.
# create - Automatically created, but no automatic subscription.
# subscribe - Automatically created and subscribed.
#
# special_use:
# A space-separated list of SPECIAL-USE flags (RFC 6154) to use for the
# mailbox. There are no validity checks, so you could specify anything
# you want in here, but it's not a good idea to use flags other than the
# standard ones specified in the RFC:
#
# \All - This (virtual) mailbox presents all messages in the
# user's message store.
# \Archive - This mailbox is used to archive messages.
# \Drafts - This mailbox is used to hold draft messages.
# \Flagged - This (virtual) mailbox presents all messages in the
# user's message store marked with the IMAP \Flagged flag.
# \Junk - This mailbox is where messages deemed to be junk mail
# are held.
# \Sent - This mailbox is used to hold copies of messages that
# have been sent.
# \Trash - This mailbox is used to hold messages that have been
# deleted.
#
# comment:
# Defines a default comment or note associated with the mailbox. This
# value is accessible through the IMAP METADATA mailbox entries
# "/shared/comment" and "/private/comment". Users with sufficient
# privileges can override the default value for entries with a custom
# value.

# NOTE: Assumes "namespace inbox" has been defined in 10-mail.conf.
namespace inbox {
# These mailboxes are widely used and could perhaps be created automatically:
mailbox Drafts {
special_use = \Drafts
}
mailbox Junk {
auto = subscribe
special_use = \Junk
autoexpunge = 180d
}
mailbox Trash {
auto = subscribe
special_use = \Trash
autoexpunge = 180d
}

# For \Sent mailboxes there are two widely used names. We'll mark both of
# them as \Sent. User typically deletes one of them if duplicates are created.
mailbox Sent {
special_use = \Sent
}
mailbox "Sent Messages" {
special_use = \Sent
}

# If you have a virtual "All messages" mailbox:
#mailbox virtual/All {
# special_use = \All
# comment = All my messages
#}

# If you have a virtual "Flagged" mailbox:
#mailbox virtual/Flagged {
# special_use = \Flagged
# comment = All my flagged messages
#}
}


+ 102
- 0
mail_system/templates/dovecot/20-imap.conf View File

@@ -0,0 +1,102 @@
# THIS FILE IS CONTROLLED BY ANSIBLE - DO NOT CHANGE IN DEPLOYMENT!


##
## IMAP specific settings
##

# If nothing happens for this long while client is IDLEing, move the connection
# to imap-hibernate process and close the old imap process. This saves memory,
# because connections use very little memory in imap-hibernate process. The
# downside is that recreating the imap process back uses some resources.
#imap_hibernate_timeout = 0

# Maximum IMAP command line length. Some clients generate very long command
# lines with huge mailboxes, so you may need to raise this if you get
# "Too long argument" or "IMAP command line too large" errors often.
#imap_max_line_length = 64k

# IMAP logout format string:
# %i - total number of bytes read from client
# %o - total number of bytes sent to client
# %{fetch_hdr_count} - Number of mails with mail header data sent to client
# %{fetch_hdr_bytes} - Number of bytes with mail header data sent to client
# %{fetch_body_count} - Number of mails with mail body data sent to client
# %{fetch_body_bytes} - Number of bytes with mail body data sent to client
# %{deleted} - Number of mails where client added \Deleted flag
# %{expunged} - Number of mails that client expunged, which does not
# include automatically expunged mails
# %{autoexpunged} - Number of mails that were automatically expunged after
# client disconnected
# %{trashed} - Number of mails that client copied/moved to the
# special_use=\Trash mailbox.
# %{appended} - Number of mails saved during the session
#imap_logout_format = in=%i out=%o deleted=%{deleted} expunged=%{expunged} \
# trashed=%{trashed} hdr_count=%{fetch_hdr_count} \
# hdr_bytes=%{fetch_hdr_bytes} body_count=%{fetch_body_count} \
# body_bytes=%{fetch_body_bytes}

# Override the IMAP CAPABILITY response. If the value begins with '+',
# add the given capabilities on top of the defaults (e.g. +XFOO XBAR).
#imap_capability =

# How long to wait between "OK Still here" notifications when client is
# IDLEing.
#imap_idle_notify_interval = 2 mins

# ID field names and values to send to clients. Using * as the value makes
# Dovecot use the default value. The following fields have default values
# currently: name, version, os, os-version, support-url, support-email.
#imap_id_send =

# ID fields sent by client to log. * means everything.
#imap_id_log =

# Workarounds for various client bugs:
# delay-newmail:
# Send EXISTS/RECENT new mail notifications only when replying to NOOP
# and CHECK commands. Some clients ignore them otherwise, for example OSX
# Mail (<v2.1). Outlook Express breaks more badly though, without this it
# may show user "Message no longer in server" errors. Note that OE6 still
# breaks even with this workaround if synchronization is set to
# "Headers Only".
# tb-extra-mailbox-sep:
# Thunderbird gets somehow confused with LAYOUT=fs (mbox and dbox) and
# adds extra '/' suffixes to mailbox names. This option causes Dovecot to
# ignore the extra '/' instead of treating it as invalid mailbox name.
# tb-lsub-flags:
# Show \Noselect flags for LSUB replies with LAYOUT=fs (e.g. mbox).
# This makes Thunderbird realize they aren't selectable and show them
# greyed out, instead of only later giving "not selectable" popup error.
#
# The list is space-separated.
#imap_client_workarounds =

# Host allowed in URLAUTH URLs sent by client. "*" allows all.
#imap_urlauth_host =

# Enable IMAP LITERAL- extension (replaces LITERAL+)
#imap_literal_minus = no

# What happens when FETCH fails due to some internal error:
# disconnect-immediately:
# The FETCH is aborted immediately and the IMAP client is disconnected.
# disconnect-after:
# The FETCH runs for all the requested mails returning as much data as
# possible. The client is finally disconnected without a tagged reply.
# no-after:
# Same as disconnect-after, but tagged NO reply is sent instead of
# disconnecting the client. If the client attempts to FETCH the same failed
# mail more than once, the client is disconnected. This is to avoid clients
# from going into infinite loops trying to FETCH a broken mail.
#imap_fetch_failure = disconnect-immediately

protocol imap {
# Space separated list of plugins to load (default is global mail_plugins).
mail_plugins = $mail_plugins imap_sieve imap_acl imap_quota

# Maximum number of IMAP connections allowed for a user from each IP address.
# NOTE: The username is compared case-sensitively.
#mail_max_userip_connections = 10
}


+ 30
- 0
mail_system/templates/dovecot/20-lmtp.conf View File

@@ -0,0 +1,30 @@
# THIS FILE IS CONTROLLED BY ANSIBLE - DO NOT CHANGE IN DEPLOYMENT!


##
## LMTP specific settings
##

# Support proxying to other LMTP/SMTP servers by performing passdb lookups.
#lmtp_proxy = no

# When recipient address includes the detail (e.g. user+detail), try to save
# the mail to the detail mailbox. See also recipient_delimiter and
# lda_mailbox_autocreate settings.
#lmtp_save_to_detail_mailbox = no

# Verify quota before replying to RCPT TO. This adds a small overhead.
#lmtp_rcpt_check_quota = no

# Which recipient address to use for Delivered-To: header and Received:
# header. The default is "final", which is the same as the one given to
# RCPT TO command. "original" uses the address given in RCPT TO's ORCPT
# parameter, "none" uses nothing. Note that "none" is currently always used
# when a mail has multiple recipients.
#lmtp_hdr_delivery_address = final

protocol lmtp {
# Space separated list of plugins to load (default is global mail_plugins).
#mail_plugins = $mail_plugins
mail_plugins = $mail_plugins sieve
}

+ 24
- 0
mail_system/templates/dovecot/90-acl.conf View File

@@ -0,0 +1,24 @@
# THIS FILE IS CONTROLLED BY ANSIBLE - DO NOT CHANGE IN DEPLOYMENT!


##
## Mailbox access control lists.
##

# vfile backend reads ACLs from "dovecot-acl" file from mail directory.
# You can also optionally give a global ACL directory path where ACLs are
# applied to all users' mailboxes. The global ACL directory contains
# one file for each mailbox, eg. INBOX or sub.mailbox. cache_secs parameter
# specifies how many seconds to wait between stat()ing dovecot-acl file
# to see if it changed.
plugin {
#acl = vfile:/etc/dovecot/global-acls:cache_secs=300
acl = vfile
}

# To let users LIST mailboxes shared by other users, Dovecot needs a
# shared mailbox dictionary. For example:
plugin {
#acl_shared_dict = file:/var/lib/dovecot/shared-mailboxes
acl_shared_dict = proxy::acl
}

+ 18
- 0
mail_system/templates/dovecot/90-plugin.conf View File

@@ -0,0 +1,18 @@
# THIS FILE IS CONTROLLED BY ANSIBLE - DO NOT CHANGE IN DEPLOYMENT!


##
## Plugin settings
##

# All wanted plugins must be listed in mail_plugins setting before any of the
# settings take effect. See <doc/wiki/Plugins.txt> for list of plugins and
# their configuration. Note that %variable expansion is done for all values.

plugin {
fts = lucene
fts_lucene = whitespace_chars=@.
fts_autoindex=yes
fts_autoindex_exclude = \Junk
fts_autoindex_exclude2 = \Trash
}

+ 107
- 0
mail_system/templates/dovecot/90-quota.conf View File

@@ -0,0 +1,107 @@
# THIS FILE IS CONTROLLED BY ANSIBLE - DO NOT CHANGE IN DEPLOYMENT!


##
## Quota configuration.
##

# Note that you also have to enable quota plugin in mail_plugins setting.
# <doc/wiki/Quota.txt>

##
## Quota limits
##

# Quota limits are set using "quota_rule" parameters. To get per-user quota
# limits, you can set/override them by returning "quota_rule" extra field
# from userdb. It's also possible to give mailbox-specific limits, for example
# to give additional 100 MB when saving to Trash:

plugin {
#quota_rule = *:storage=1G
#quota_rule2 = Trash:storage=+100M

# LDA/LMTP allows saving the last mail to bring user from under quota to
# over quota, if the quota doesn't grow too high. Default is to allow as
# long as quota will stay under 10% above the limit. Also allowed e.g. 10M.
#quota_grace = 10%%

# Quota plugin can also limit the maximum accepted mail size.
#quota_max_mail_size = 100M
}

##
## Quota warnings
##

# You can execute a given command when user exceeds a specified quota limit.
# Each quota root has separate limits. Only the command for the first
# exceeded limit is executed, so put the highest limit first.
# The commands are executed via script service by connecting to the named
# UNIX socket (quota-warning below).
# Note that % needs to be escaped as %%, otherwise "% " expands to empty.

plugin {
#quota_warning = storage=95%% quota-warning 95 %u
#quota_warning2 = storage=80%% quota-warning 80 %u
}

# Example quota-warning service. The unix listener's permissions should be
# set in a way that mail processes can connect to it. Below example assumes
# that mail processes run as vmail user. If you use mode=0666, all system users
# can generate quota warnings to anyone.
#service quota-warning {
# executable = script /usr/local/bin/quota-warning.sh
# user = dovecot
# unix_listener quota-warning {
# user = vmail
# }
#}

##
## Quota backends
##

# Multiple backends are supported:
# dirsize: Find and sum all the files found from mail directory.
# Extremely SLOW with Maildir. It'll eat your CPU and disk I/O.
# dict: Keep quota stored in dictionary (eg. SQL)
# maildir: Maildir++ quota
# fs: Read-only support for filesystem quota

plugin {
#quota = dirsize:User quota
#quota = maildir:User quota
#quota = dict:User quota::proxy::quota
#quota = fs:User quota
}

# Multiple quota roots are also possible, for example this gives each user
# their own 100MB quota and one shared 1GB quota within the domain:
plugin {
#quota = dict:user::proxy::quota
#quota2 = dict:domain:%d:proxy::quota_domain
#quota_rule = *:storage=102400
#quota2_rule = *:storage=1048576
}

plugin {
# https://wiki2.dovecot.org/Quota
quota_grace = 10%%
quota_status_success = DUNNO
quota_status_nouser = DUNNO
quota_status_overquota = "552 5.2.2 Mailbox is full"
quota_exceeded_message = Quota exceeded, please reduce your your overall mail volume and/or the number of messages in your inbox.

# https://wiki2.dovecot.org/Quota/Configuration
# https://wiki2.dovecot.org/Quota/Count
quota = count:User quota
quota_rule = *:storage=80G
# ATTENTION: the following rule counts all messages in the mailbox, not just in the inbox
quota_rule2 = INBOX:messages=+500000
quota_rule3 = Trash:storage=+200M

# https://wiki2.dovecot.org/Quota/Count
# This is required - it uses "virtual sizes" rather than "physical sizes" for quota counting:
quota_vsizes = yes
}

+ 49
- 0
mail_system/templates/dovecot/90-sieve-extprograms.conf View File

@@ -0,0 +1,49 @@
# THIS FILE IS CONTROLLED BY ANSIBLE - DO NOT CHANGE IN DEPLOYMENT!


# Sieve Extprograms plugin configuration

# Don't forget to add the sieve_extprograms plugin to the sieve_plugins setting.
# Also enable the extensions you need (one or more of vnd.dovecot.pipe,
# vnd.dovecot.filter and vnd.dovecot.execute) by adding these to the
# sieve_extensions or sieve_global_extensions settings. Restricting these
# extensions to a global context using sieve_global_extensions is recommended.

plugin {

# The directory where the program sockets are located for the
# vnd.dovecot.pipe, vnd.dovecot.filter and vnd.dovecot.execute extension
# respectively. The name of each unix socket contained in that directory
# directly maps to a program-name referenced from the Sieve script.
#sieve_pipe_socket_dir = sieve-pipe
#sieve_filter_socket_dir = sieve-filter
#sieve_execute_socket_dir = sieve-execute

# The directory where the scripts are located for direct execution by the
# vnd.dovecot.pipe, vnd.dovecot.filter and vnd.dovecot.execute extension
# respectively. The name of each script contained in that directory
# directly maps to a program-name referenced from the Sieve script.
#sieve_pipe_bin_dir = /usr/lib/dovecot/sieve-pipe
#sieve_filter_bin_dir = /usr/lib/dovecot/sieve-filter
#sieve_execute_bin_dir = /usr/lib/dovecot/sieve-execute
sieve_pipe_bin_dir = /etc/dovecot/sieve_pipes
sieve_filter_bin_dir = /etc/dovecot/sieve_filters
sieve_execute_bin_dir = /etc/dovecot/sieve_execute
}

# An example program service called 'do-something' to pipe messages to
#service do-something {
# Define the executed script as parameter to the sieve service
#executable = script /usr/lib/dovecot/sieve-pipe/do-something.sh

# Use some unprivileged user for executing the program
#user = dovenull

# The unix socket located in the sieve_pipe_socket_dir (as defined in the
# plugin {} section above)
#unix_listener sieve-pipe/do-something {
# LDA/LMTP must have access
# user = vmail
# mode = 0600
#}
#}

+ 234
- 0
mail_system/templates/dovecot/90-sieve.conf View File

@@ -0,0 +1,234 @@
# THIS FILE IS CONTROLLED BY ANSIBLE - DO NOT CHANGE IN DEPLOYMENT!


##
## Settings for the Sieve interpreter
##

# Do not forget to enable the Sieve plugin in 15-lda.conf and 20-lmtp.conf
# by adding it to the respective mail_plugins= settings.

# The Sieve interpreter can retrieve Sieve scripts from several types of
# locations. The default `file' location type is a local filesystem path
# pointing to a Sieve script file or a directory containing multiple Sieve
# script files. More complex setups can use other location types such as
# `ldap' or `dict' to fetch Sieve scripts from remote databases.
#
# All settings that specify the location of one ore more Sieve scripts accept
# the following syntax:
#
# location = [<type>:]path[;<option>[=<value>][;...]]
#
# If the type prefix is omitted, the script location type is 'file' and the
# location is interpreted as a local filesystem path pointing to a Sieve script
# file or directory. Refer to Pigeonhole wiki or INSTALL file for more
# information.

plugin {
# The location of the user's main Sieve script or script storage. The LDA
# Sieve plugin uses this to find the active script for Sieve filtering at
# delivery. The "include" extension uses this location for retrieving
# :personal" scripts. This is also where the ManageSieve service will store
# the user's scripts, if supported.
#
# Currently only the 'file:' location type supports ManageSieve operation.
# Other location types like 'dict:' and 'ldap:' can currently only
# be used as a read-only script source ().
#
# For the 'file:' type: use the ';active=' parameter to specify where the
# active script symlink is located.
# For other types: use the ';name=' parameter to specify the name of the
# default/active script.
#sieve = file:~/sieve;active=~/.dovecot.sieve
sieve = file:/srv/mailstore/%d/%n/sieve;active=/srv/mailstore/%d/%n/.dovecot.sieve

# The default Sieve script when the user has none. This is the location of a
# global sieve script file, which gets executed ONLY if user's personal Sieve
# script doesn't exist. Be sure to pre-compile this script manually using the
# sievec command line tool if the binary is not stored in a global location.
# --> See sieve_before for executing scripts before the user's personal
# script.
#sieve_default = /var/lib/dovecot/sieve/default.sieve

# The name by which the default Sieve script (as configured by the
# sieve_default setting) is visible to the user through ManageSieve.
#sieve_default_name =

# Location for ":global" include scripts as used by the "include" extension.
#sieve_global =

# The location of a Sieve script that is run for any message that is about to
# be discarded; i.e., it is not delivered anywhere by the normal Sieve
# execution. This only happens when the "implicit keep" is canceled, by e.g.
# the "discard" action, and no actions that deliver the message are executed.
# This "discard script" can prevent discarding the message, by executing
# alternative actions. If the discard script does nothing, the message is
# still discarded as it would be when no discard script is configured.
#sieve_discard =

# Location Sieve of scripts that need to be executed before the user's
# personal script. If a 'file' location path points to a directory, all the
# Sieve scripts contained therein (with the proper `.sieve' extension) are
# executed. The order of execution within that directory is determined by the
# file names, using a normal 8bit per-character comparison.
#
# Multiple script locations can be specified by appending an increasing number
# to the setting name. The Sieve scripts found from these locations are added
# to the script execution sequence in the specified order. Reading the
# numbered sieve_before settings stops at the first missing setting, so no
# numbers may be skipped.
#sieve_before = /var/lib/dovecot/sieve.d/
#sieve_before2 = ldap:/etc/sieve-ldap.conf;name=ldap-domain
#sieve_before3 = (etc...)
sieve_before = /etc/dovecot/sieve_before

# Identical to sieve_before, only the specified scripts are executed after the
# user's script (only when keep is still in effect!). Multiple script
# locations can be specified by appending an increasing number.
#sieve_after =
#sieve_after2 =
#sieve_after2 = (etc...)
sieve_after = /etc/dovecot/sieve_after

# Which Sieve language extensions are available to users. By default, all
# supported extensions are available, except for deprecated extensions or
# those that are still under development. Some system administrators may want
# to disable certain Sieve extensions or enable those that are not available
# by default. This setting can use '+' and '-' to specify differences relative
# to the default. For example `sieve_extensions = +imapflags' will enable the
# deprecated imapflags extension in addition to all extensions were already
# enabled by default.
#sieve_extensions = +notify +imapflags

# Which Sieve language extensions are ONLY available in global scripts. This
# can be used to restrict the use of certain Sieve extensions to administrator
# control, for instance when these extensions can cause security concerns.
# This setting has higher precedence than the `sieve_extensions' setting
# (above), meaning that the extensions enabled with this setting are never
# available to the user's personal script no matter what is specified for the
# `sieve_extensions' setting. The syntax of this setting is similar to the
# `sieve_extensions' setting, with the difference that extensions are
# enabled or disabled for exclusive use in global scripts. Currently, no
# extensions are marked as such by default.
#sieve_global_extensions =
sieve_global_extensions = +vnd.dovecot.pipe +vnd.dovecot.filter +vnd.dovecot.execute

# The Pigeonhole Sieve interpreter can have plugins of its own. Using this
# setting, the used plugins can be specified. Check the Dovecot wiki
# (wiki2.dovecot.org) or the pigeonhole website
# (http://pigeonhole.dovecot.org) for available plugins.
# The sieve_extprograms plugin is included in this release.
#sieve_plugins =
sieve_plugins = sieve_imapsieve sieve_extprograms

# The separator that is expected between the :user and :detail
# address parts introduced by the subaddress extension. This may
# also be a sequence of characters (e.g. '--'). The current
# implementation looks for the separator from the left of the
# localpart and uses the first one encountered. The :user part is
# left of the separator and the :detail part is right. This setting
# is also used by Dovecot's LMTP service.
#recipient_delimiter = +

# The maximum size of a Sieve script. The compiler will refuse to compile any
# script larger than this limit. If set to 0, no limit on the script size is
# enforced.
#sieve_max_script_size = 1M

# The maximum number of actions that can be performed during a single script
# execution. If set to 0, no limit on the total number of actions is enforced.
#sieve_max_actions = 32

# The maximum number of redirect actions that can be performed during a single
# script execution. If set to 0, no redirect actions are allowed.
#sieve_max_redirects = 4

# The maximum number of personal Sieve scripts a single user can have. If set
# to 0, no limit on the number of scripts is enforced.
# (Currently only relevant for ManageSieve)
#sieve_quota_max_scripts = 0

# The maximum amount of disk storage a single user's scripts may occupy. If
# set to 0, no limit on the used amount of disk storage is enforced.
# (Currently only relevant for ManageSieve)
#sieve_quota_max_storage = 0

# The primary e-mail address for the user. This is used as a default when no
# other appropriate address is available for sending messages. If this setting
# is not configured, either the postmaster or null "<>" address is used as a
# sender, depending on the action involved. This setting is important when
# there is no message envelope to extract addresses from, such as when the
# script is executed in IMAP.
#sieve_user_email =

# The path to the file where the user log is written. If not configured, a
# default location is used. If the main user's personal Sieve (as configured
# with sieve=) is a file, the logfile is set to <filename>.log by default. If
# it is not a file, the default user log file is ~/.dovecot.sieve.log.
#sieve_user_log =

# Specifies what envelope sender address is used for redirected messages.
# The following values are supported for this setting:
#
# "sender" - The sender address is used (default).
# "recipient" - The final recipient address is used.
# "orig_recipient" - The original recipient is used.
# "user_email" - The user's primary address is used. This is
# configured with the "sieve_user_email" setting. If
# that setting is unconfigured, "user_mail" is equal to
# "recipient".
# "postmaster" - The postmaster_address configured for the LDA.
# "<user@domain>" - Redirected messages are always sent from user@domain.
# The angle brackets are mandatory. The null "<>" address
# is also supported.
#
# This setting is ignored when the envelope sender is "<>". In that case the
# sender of the redirected message is also always "<>".
#sieve_redirect_envelope_from = sender

## TRACE DEBUGGING
# Trace debugging provides detailed insight in the operations performed by
# the Sieve script. These settings apply to both the LDA Sieve plugin and the
# IMAPSIEVE plugin.
#
# WARNING: On a busy server, this functionality can quickly fill up the trace
# directory with a lot of trace files. Enable this only temporarily and as
# selective as possible.
# The directory where trace files are written. Trace debugging is disabled if
# this setting is not configured or if the directory does not exist. If the
# path is relative or it starts with "~/" it is interpreted relative to the
# current user's home directory.
#sieve_trace_dir =
# The verbosity level of the trace messages. Trace debugging is disabled if
# this setting is not configured. Possible values are:
#
# "actions" - Only print executed action commands, like keep,
# fileinto, reject and redirect.
# "commands" - Print any executed command, excluding test commands.
# "tests" - Print all executed commands and performed tests.
# "matching" - Print all executed commands, performed tests and the
# values matched in those tests.
#sieve_trace_level =
# Enables highly verbose debugging messages that are usually only useful for
# developers.
#sieve_trace_debug = no
# Enables showing byte code addresses in the trace output, rather than only
# the source line numbers.
#sieve_trace_addresses = no


# From elsewhere to Junk folder
imapsieve_mailbox1_name = Junk
imapsieve_mailbox1_causes = COPY
imapsieve_mailbox1_before = file:/etc/dovecot/sieve_pipes/learn-spam.sieve

# From Junk folder to elsewhere
imapsieve_mailbox2_name = *
imapsieve_mailbox2_from = Junk
imapsieve_mailbox2_causes = COPY
imapsieve_mailbox2_before = file:/etc/dovecot/sieve_pipes/learn-ham.sieve
}

+ 3
- 0
mail_system/templates/dovecot/README_after View File

@@ -0,0 +1,3 @@
# THIS FILE IS CONTROLLED BY ANSIBLE - DO NOT CHANGE IN DEPLOYMENT!

See sieve_before/README; sieve filters in this directory are run after the user's scripts.

+ 40
- 0
mail_system/templates/dovecot/README_before View File

@@ -0,0 +1,40 @@
# THIS FILE IS CONTROLLED BY ANSIBLE - DO NOT CHANGE IN DEPLOYMENT!


Sieve scripts that will be run before user scripts.

Don't forget to compile the script with

sievec /etc/dovecot/sieve_before/{name}.sieve

and

chown mailstore: /etc/dovecot/sieve_before/{name}.*


You may use regular Sieve extensions, but also Dovecot-specific Sieve extensions,
cf. https://wiki2.dovecot.org/Pigeonhole/Sieve .

(Note: We made vnd.dovecot.{pipe,filter,execute} available only in the global context,
they cannot be used by users.)


Example:

require ["vnd.dovecot.filter", "vnd.dovecot.execute", "variables", "envelope", "subaddress"];

if execute :output "out" :pipe "copy_to_matrix" {
filter "test" "${out}";
}

if envelope :matches :detail "to" "*" {
set "x" "${1}";
}

filter "test" "${x}";

if envelope :matches :user "to" "*" {
set "y" "${1}";
}

filter "test" "${y}";

+ 13
- 0
mail_system/templates/dovecot/README_execute View File

@@ -0,0 +1,13 @@
# THIS FILE IS CONTROLLED BY ANSIBLE - DO NOT CHANGE IN DEPLOYMENT!


Execute is useful for conditions

Take care to not output a newline after the result!

Example:

#!/bin/bash
d=$(/bin/date +%s)
echo -n $d
exit 0

+ 15
- 0
mail_system/templates/dovecot/README_filters View File

@@ -0,0 +1,15 @@
# THIS FILE IS CONTROLLED BY ANSIBLE - DO NOT CHANGE IN DEPLOYMENT!


A filter accepts a mail as input, modifies it and outputs the result.

Note: You cannot have side-effects like putting something into /tmp.


Example:

#!/bin/bash

echo "X-Test: $(date) $1"
cat


+ 42
- 0
mail_system/templates/dovecot/auth-sql.conf.ext View File

@@ -0,0 +1,42 @@
# THIS FILE IS CONTROLLED BY ANSIBLE - DO NOT CHANGE IN DEPLOYMENT!


# Authentication for SQL users. Included from 10-auth.conf.
#
# <doc/wiki/AuthDatabase.SQL.txt>

passdb {
driver = sql

# Path for SQL configuration file, see example-config/dovecot-sql.conf.ext
args = /etc/dovecot/dovecot-sql.conf.ext
}

# "prefetch" user database means that the passdb already provided the
# needed information and there's no need to do a separate userdb lookup.
# <doc/wiki/UserDatabase.Prefetch.txt>
#userdb {
# driver = prefetch
#}

userdb {
driver = sql
args = /etc/dovecot/dovecot-sql.conf.ext
}
# using the static driver will cause the iterate_query
# in /etc/dovecot/dovecot-sql.conf.ext
# to fail (e.g. for 'doveadm mailbox list -A'),
# so we also fetch the userdb via sql, even if this would be faster:
#userdb {
# driver = static
# args = uid=mailstore gid=mailstore home=/srv/mailstore/%d/%n
#}


# If you don't have any user-specific settings, you can avoid the user_query
# by using userdb static instead of userdb sql, for example:
# <doc/wiki/UserDatabase.Static.txt>