commit c0ae983acb14ac1d89381ab564187a3ce71b630f Author: iburadempa Date: Thu Sep 19 10:43:17 2019 +0200 clone from private repo diff --git a/README.md b/README.md new file mode 100644 index 0000000..7d9c0dc --- /dev/null +++ b/README.md @@ -0,0 +1 @@ +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 diff --git a/mail_system.yml b/mail_system.yml new file mode 100644 index 0000000..a589330 --- /dev/null +++ b/mail_system.yml @@ -0,0 +1,59 @@ +# 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 diff --git a/mail_system/tasks/clamav.yml b/mail_system/tasks/clamav.yml new file mode 100644 index 0000000..216b5e1 --- /dev/null +++ b/mail_system/tasks/clamav.yml @@ -0,0 +1,50 @@ +# 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 diff --git a/mail_system/tasks/database.yml b/mail_system/tasks/database.yml new file mode 100644 index 0000000..783a47c --- /dev/null +++ b/mail_system/tasks/database.yml @@ -0,0 +1,133 @@ +- 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 diff --git a/mail_system/tasks/dovecot.yml b/mail_system/tasks/dovecot.yml new file mode 100644 index 0000000..4ba6b9a --- /dev/null +++ b/mail_system/tasks/dovecot.yml @@ -0,0 +1,125 @@ +# 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" diff --git a/mail_system/tasks/main.yml b/mail_system/tasks/main.yml new file mode 100644 index 0000000..ecf7be9 --- /dev/null +++ b/mail_system/tasks/main.yml @@ -0,0 +1,6 @@ +- include: remove_other_mtas.yml +- include: database.yml +- include: postfix.yml +- include: dovecot.yml +- include: clamav.yml +- include: rspamd.yml diff --git a/mail_system/tasks/postfix.yml b/mail_system/tasks/postfix.yml new file mode 100644 index 0000000..72a9724 --- /dev/null +++ b/mail_system/tasks/postfix.yml @@ -0,0 +1,79 @@ +- 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 diff --git a/mail_system/tasks/remove_other_mtas.yml b/mail_system/tasks/remove_other_mtas.yml new file mode 100644 index 0000000..37fcfaa --- /dev/null +++ b/mail_system/tasks/remove_other_mtas.yml @@ -0,0 +1,10 @@ +- 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 }}" diff --git a/mail_system/tasks/rspamd.yml b/mail_system/tasks/rspamd.yml new file mode 100644 index 0000000..84e67a5 --- /dev/null +++ b/mail_system/tasks/rspamd.yml @@ -0,0 +1,81 @@ +- 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 diff --git a/mail_system/templates/dovecot/10-auth.conf b/mail_system/templates/dovecot/10-auth.conf new file mode 100644 index 0000000..e44d147 --- /dev/null +++ b/mail_system/templates/dovecot/10-auth.conf @@ -0,0 +1,133 @@ +# 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 . 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. +#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. +# +# +# +# User database specifies where mails are located and what user/group IDs +# own them. For single-UID configuration use "static" userdb. +# +# + +#!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 + diff --git a/mail_system/templates/dovecot/10-mail.conf b/mail_system/templates/dovecot/10-mail.conf new file mode 100644 index 0000000..c7f8ffa --- /dev/null +++ b/mail_system/templates/dovecot/10-mail.conf @@ -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 +# +# +# +#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. +#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. +#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. +#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= 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 .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 = + diff --git a/mail_system/templates/dovecot/10-master.conf b/mail_system/templates/dovecot/10-master.conf new file mode 100644 index 0000000..befe56d --- /dev/null +++ b/mail_system/templates/dovecot/10-master.conf @@ -0,0 +1,154 @@ +# 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. + #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 +} diff --git a/mail_system/templates/dovecot/15-mailboxes.conf b/mail_system/templates/dovecot/15-mailboxes.conf new file mode 100644 index 0000000..0f6bbdb --- /dev/null +++ b/mail_system/templates/dovecot/15-mailboxes.conf @@ -0,0 +1,86 @@ +# 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 + #} +} + diff --git a/mail_system/templates/dovecot/20-imap.conf b/mail_system/templates/dovecot/20-imap.conf new file mode 100644 index 0000000..b818ab2 --- /dev/null +++ b/mail_system/templates/dovecot/20-imap.conf @@ -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 ( 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 +} diff --git a/mail_system/templates/dovecot/90-quota.conf b/mail_system/templates/dovecot/90-quota.conf new file mode 100644 index 0000000..d05722e --- /dev/null +++ b/mail_system/templates/dovecot/90-quota.conf @@ -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. +# + +## +## 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 +} diff --git a/mail_system/templates/dovecot/90-sieve-extprograms.conf b/mail_system/templates/dovecot/90-sieve-extprograms.conf new file mode 100644 index 0000000..8f8d496 --- /dev/null +++ b/mail_system/templates/dovecot/90-sieve-extprograms.conf @@ -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 + #} +#} diff --git a/mail_system/templates/dovecot/90-sieve.conf b/mail_system/templates/dovecot/90-sieve.conf new file mode 100644 index 0000000..25c0703 --- /dev/null +++ b/mail_system/templates/dovecot/90-sieve.conf @@ -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 = [:]path[;