diff options
Diffstat (limited to 'roles/IMAP/templates/etc')
| -rw-r--r-- | roles/IMAP/templates/etc/dovecot/conf.d/10-master.conf.j2 | 166 | ||||
| -rw-r--r-- | roles/IMAP/templates/etc/dovecot/conf.d/99-local.conf.j2 | 204 | ||||
| -rw-r--r-- | roles/IMAP/templates/etc/postfix/main.cf.j2 | 44 | ||||
| l--------- | roles/IMAP/templates/etc/postfix/master.cf.j2 | 1 | ||||
| -rw-r--r-- | roles/IMAP/templates/etc/postfix/relay_clientcerts.j2 | 6 | ||||
| -rw-r--r-- | roles/IMAP/templates/etc/spamassassin/local.cf.j2 | 120 |
6 files changed, 507 insertions, 34 deletions
diff --git a/roles/IMAP/templates/etc/dovecot/conf.d/10-master.conf.j2 b/roles/IMAP/templates/etc/dovecot/conf.d/10-master.conf.j2 new file mode 100644 index 0000000..d61c11b --- /dev/null +++ b/roles/IMAP/templates/etc/dovecot/conf.d/10-master.conf.j2 @@ -0,0 +1,166 @@ +#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 = 1024M + +# 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 { +{% if groups.all | length > 1 %} + address = {{ ipsec[inventory_hostname_short] }} + port = 143 +{% else %} + port = 0 +{% endif %} + } + 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 + + # Max. number of IMAP processes (logins) + process_limit = 256 + + # Number of processes to always keep waiting for more connections. + process_min_avail = 4 + + # 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 stats { + unix_listener stats-writer { + user = vmail + mode = 0600 + } +} + +service submission-login { + inet_listener submission { + port = 0 + } +} + +service lmtp { + user = vmail + + unix_listener /var/spool/postfix-{{ postfix_instance.IMAP.name }}/private/dovecot-lmtpd { + user = postfix + mode = 0600 + } + + # 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 = + #} + + # Number of processes to always keep waiting for more connections. + process_min_avail = 4 +} + +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 + + unix_listener imap-master { + user = $default_internal_user + mode = 0600 + } +} + +service imap-hibernate { + unix_listener imap-hibernate { + # Match user running imap processes, cf. + # https://dovecot.org/pipermail/dovecot/2015-August/101783.html + user = vmail + mode = 0600 + } +} + +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 { + user = vmail + mode = 0600 + } + + # Postfix smtp-auth + unix_listener /var/spool/postfix-{{ postfix_instance.MSA.name }}/private/dovecot-auth { + user = postfix + group = postfix + mode = 0600 + } + + # 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 = $default_internal_user +} + +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 = + #group = + } +} diff --git a/roles/IMAP/templates/etc/dovecot/conf.d/99-local.conf.j2 b/roles/IMAP/templates/etc/dovecot/conf.d/99-local.conf.j2 new file mode 100644 index 0000000..3560193 --- /dev/null +++ b/roles/IMAP/templates/etc/dovecot/conf.d/99-local.conf.j2 @@ -0,0 +1,204 @@ +auth_default_realm = fripost.org +auth_username_format = %Lu +auth_mechanisms = plain login + +mail_uid = vmail +mail_gid = vmail +mail_privileged_group = + +first_valid_uid = 1 +last_valid_uid = 0 + +default_vsz_limit = 1024M + +service imap-login { + inet_listener imap { +{% if groups.all | length > 1 %} + address = {{ ipsec[inventory_hostname_short] }} + port = 143 +{% else %} + port = 0 +{% endif %} + } + process_limit = 256 + process_min_avail = 4 +} + +service stats { + unix_listener stats-writer { + user = vmail + mode = 0600 + } +} + +service submission-login { + inet_listener submission { + port = 0 + } +} + +service lmtp { + user = vmail + unix_listener lmtp { + mode = 0 + } + unix_listener /var/spool/postfix-mda/private/dovecot-lmtpd { + user = postfix + mode = 0600 + } + process_min_avail = 4 +} + +service imap { + unix_listener imap-master { + user = $default_internal_user + mode = 0600 + } +} +service imap-hibernate { + unix_listener imap-hibernate { + # Match user running imap processes, cf. + # https://dovecot.org/pipermail/dovecot/2015-August/101783.html + user = vmail + mode = 0600 + } +} + +service auth { + unix_listener auth-userdb { + user = vmail + mode = 0600 + } + + # Postfix smtp-auth + unix_listener /var/spool/postfix-msa/private/dovecot-auth { + user = postfix + group = postfix + mode = 0600 + } +} + +service auth-worker { + user = $default_internal_user +} + + +mail_server_comment = "fripost - demokratisk e-post" +mail_server_admin = mailto:postmaster@fripost.org + +mail_plugins = quota virtual zlib + +mail_location = mdbox:~/mail +mdbox_preallocate_space = yes + +mail_attachment_dir = /home/mail/attachments +mail_attachment_fs = sis-queue /home/mail/attachments/queue:posix +mail_attachment_hash = %{sha256} + +sendmail_path = /usr/sbin/postmulti -i msa -x /usr/sbin/sendmail + +ssl = required +# XXX `doveadm exec imap` fails with "ssl_key: Can't open file +# /etc/dovecot/ssl/imap.fripost.org.key" +# https://dovecot.org/pipermail/dovecot/2020-August/119642.html +# TODO bookworm inline the include_try +!include_try ../ssl/config +ssl_dh = </etc/ssl/dhparams.pem +ssl_min_protocol = TLSv1.2 +ssl_cipher_list = ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES256-GCM-SHA384:ECDHE-RSA-AES256-GCM-SHA384:ECDHE-ECDSA-CHACHA20-POLY1305:ECDHE-RSA-CHACHA20-POLY1305:DHE-RSA-AES128-GCM-SHA256:DHE-RSA-AES256-GCM-SHA384 + +namespace inbox { + inbox = yes + separator = / + + mailbox Drafts { + auto = create + special_use = \Drafts + } + mailbox Junk { + auto = create + special_use = \Junk + } + mailbox "Sent Messages" { + auto = no + special_use = \Sent + } + mailbox Sent { + auto = subscribe + special_use = \Sent + } + mailbox Trash { + auto = create + special_use = \Trash + } + mailbox virtual/All { + comment = All messages + special_use = \All + } + mailbox virtual/Flagged { + comment = All flagged messages + special_use = \Flagged + } +} + +namespace virtual { + prefix = virtual/ + separator = / + location = virtual:/etc/dovecot/virtual:INDEX=MEMORY + list = no + hidden = no + subscriptions = no +} + +imap_hibernate_timeout = 15s +protocol imap { + mail_plugins = $mail_plugins imap_zlib + mail_max_userip_connections = 16 + + ## TODO Load the 'antispam' plugin for people using the content filter. + ## (Otherwise fallback to the static userdb.) + #userdb { + # driver = ldap + # args = /etc/dovecot/dovecot-ldap-userdb.conf.ext + # + # # Default fields can be used to specify defaults that LDAP may override + # default_fields = home=/home/mail/virtual/%d/%n + #} +} + +protocol lmtp { + postmaster_address = postmaster@fripost.org + # Space separated list of plugins to load (default is global mail_plugins). + mail_plugins = $mail_plugins sieve +} + +plugin { + antispam_backend = spool2dir + + antispam_trash = Trash + antispam_unsure_pattern_ignorecase = MailTrain;MailTrain/* + antispam_spam = Junk + + # The first %%lu is replaced by the current time. + # The second %%lu is replaced by a counter to generate unique names. + # These two tokens MUST be present in the template! + antispam_spool2dir_spam = /home/mail/spamspool/%u-%%10lu-%%06lu.spam + antispam_spool2dir_notspam = /home/mail/spamspool/%u-%%10lu-%%06lu.ham +} + +plugin { + quota_rule = *:storage=0 + quota = count:User quota + quota_vsizes = yes +} + +plugin { + sieve = file:~/sieve;active=~/dovecot.sieve + sieve_extensions = +editheader + recipient_delimiter = + +} + +plugin { + zlib_save = gz + zlib_save_level = 6 +} diff --git a/roles/IMAP/templates/etc/postfix/main.cf.j2 b/roles/IMAP/templates/etc/postfix/main.cf.j2 index 1d71131..64a2a40 100644 --- a/roles/IMAP/templates/etc/postfix/main.cf.j2 +++ b/roles/IMAP/templates/etc/postfix/main.cf.j2 @@ -1,105 +1,93 @@ ######################################################################## -# MDA configuration +# Mail Delivery Agent (MDA) configuration # # {{ ansible_managed }} # Do NOT edit this file directly! -smtpd_banner = $myhostname ESMTP $mail_name (Debian/GNU) -biff = no -readme_directory = no -mail_owner = postfix +smtpd_banner = $myhostname ESMTP $mail_name (Debian/GNU) +biff = no +readme_directory = no +compatibility_level = 2 +smtputf8_enable = no delay_warning_time = 4h maximal_queue_lifetime = 5d myorigin = /etc/mailname myhostname = mda{{ imapno | default('') }}.$mydomain mydomain = fripost.org append_dot_mydomain = no -# Turn off all TCP/IP listener ports except that necessary for the MDA. -master_service_disable = !2526.inet inet +mynetworks = 127.0.0.0/8, [::1]/128 +{%- if groups.all | length > 1 -%} +{%- for mx in groups.MX | sort -%} + , {{ ipsec[ hostvars[mx].inventory_hostname_short ] | ansible.utils.ipaddr }} +{%- endfor %} +{% endif %} queue_directory = /var/spool/postfix-{{ postfix_instance[inst].name }} data_directory = /var/lib/postfix-{{ postfix_instance[inst].name }} multi_instance_group = {{ postfix_instance[inst].group | default('') }} multi_instance_name = postfix-{{ postfix_instance[inst].name }} multi_instance_enable = yes -# This server is a Mail Delivery Agent -mynetworks_style = host -inet_interfaces = all - # No local delivery mydestination = local_transport = error:5.1.1 Mailbox unavailable alias_maps = alias_database = local_recipient_maps = -message_size_limit = 67108864 +message_size_limit = 0 recipient_delimiter = + # No relay: this server is inbound-only relay_transport = error:5.1.1 Relay unavailable default_transport = error:5.1.1 Transport unavailable # Virtual transport (the alias resolution and address validation is # performed on the MX:es only) virtual_transport = lmtp:unix:private/dovecot-lmtpd lmtp_bind_address = 127.0.0.1 virtual_mailbox_domains = static:all virtual_mailbox_maps = static:all -#transport_maps = cdb:$config_directory/transport +#transport_maps = lmdb:$config_directory/transport # Restore the original envelope recipient relay_domains = recipient_canonical_classes = envelope_recipient recipient_canonical_maps = pcre:$config_directory/recipient_canonical.pcre # Don't rewrite remote headers local_header_rewrite_clients = - -relay_clientcerts = cdb:$config_directory/relay_clientcerts -smtpd_tls_security_level = may -smtpd_tls_exclude_ciphers = EXPORT, LOW, MEDIUM, aNULL, eNULL, DES, RC4, MD5 -smtpd_tls_cert_file = /etc/postfix/ssl/{{ ansible_fqdn }}.pem -smtpd_tls_key_file = /etc/postfix/ssl/{{ ansible_fqdn }}.key -smtpd_tls_dh1024_param_file = /etc/ssl/private/dhparams.pem -smtpd_tls_session_cache_database= btree:$data_directory/smtpd_tls_session_cache -smtpd_tls_received_header = yes -smtpd_tls_ask_ccert = yes -smtpd_tls_session_cache_timeout = 3600s -smtpd_tls_fingerprint_digest = sha256 - +smtp_tls_security_level = none +smtpd_tls_security_level = none strict_rfc821_envelopes = yes smtpd_delay_reject = yes disable_vrfy_command = yes smtpd_client_restrictions = permit_mynetworks - permit_tls_clientcerts # We are the only ones using this proxy, but if things go wrong we # want to know why defer smtpd_helo_required = yes smtpd_helo_restrictions = reject_invalid_helo_hostname smtpd_sender_restrictions = reject_non_fqdn_sender smtpd_relay_restrictions = reject_non_fqdn_recipient permit_mynetworks - permit_tls_clientcerts reject smtpd_data_restrictions = reject_unauth_pipelining # vim: set filetype=pfmain : diff --git a/roles/IMAP/templates/etc/postfix/master.cf.j2 b/roles/IMAP/templates/etc/postfix/master.cf.j2 new file mode 120000 index 0000000..011f8e0 --- /dev/null +++ b/roles/IMAP/templates/etc/postfix/master.cf.j2 @@ -0,0 +1 @@ +../../../../common/templates/etc/postfix/master.cf.j2
\ No newline at end of file diff --git a/roles/IMAP/templates/etc/postfix/relay_clientcerts.j2 b/roles/IMAP/templates/etc/postfix/relay_clientcerts.j2 deleted file mode 100644 index 42a83b5..0000000 --- a/roles/IMAP/templates/etc/postfix/relay_clientcerts.j2 +++ /dev/null @@ -1,6 +0,0 @@ -# {{ ansible_managed }} -# /!\ WARNING: smtp_tls_fingerprint_digest MUST be sha256! - -{% for h in groups.MX | difference([inventory_hostname]) | sort %} -{{ lookup('pipe', 'openssl x509 -in certs/postfix/'+h+'.pem -noout -fingerprint -sha256 | cut -d= -f2') }} {{ h }} -{% endfor %} diff --git a/roles/IMAP/templates/etc/spamassassin/local.cf.j2 b/roles/IMAP/templates/etc/spamassassin/local.cf.j2 new file mode 100644 index 0000000..edef554 --- /dev/null +++ b/roles/IMAP/templates/etc/spamassassin/local.cf.j2 @@ -0,0 +1,120 @@ +# This is the right place to customize your installation of SpamAssassin. +# +# See 'perldoc Mail::SpamAssassin::Conf' for details of what can be +# tweaked. +# +# Only a small subset of options are listed below +# +########################################################################### + +# Add *****SPAM***** to the Subject header of spam e-mails +# +rewrite_header Subject [*****SPAM*****] + + +# Save spam messages as a message/rfc822 MIME attachment instead of +# modifying the original message (0: off, 2: use text/plain instead) +# +report_safe 0 + + +# Set which networks or hosts are considered 'trusted' by your mail +# server (i.e. not spammers) +# +clear_trusted_networks +trusted_networks 127.0.0.1/8 {{ ipsec_subnet }} {{ groups.MX | join(' ') }} + +# MXes and internal relays should be listed in bouth trusted_networks +# and clear_internal_networks, cf. +# https://spamassassin.apache.org/full/3.4.x/doc/Mail_SpamAssassin_Conf.html +clear_internal_networks +internal_networks {{ groups.MX | join(' ') }} + + +# Set file-locking method (flock is not safe over NFS, but is faster) +# +lock_method flock + + +# Set the threshold at which a message is considered spam (default: 5.0) +# +required_score 5.0 + + +# Use Bayesian classifier (default: 1) +# +use_bayes 1 + + +# Bayesian classifier auto-learning (default: 1) +# +bayes_auto_learn 1 +bayes_auto_expire 0 + + +# Enable or disable network checks +# +# http://en.linuxreviews.org/Spam_blacklists +# The best bets are zen.spamhaus.org and bl.spamcop.net . +skip_rbl_checks 0 +use_razor2 1 +use_pyzor 0 +use_auto_whitelist 1 + +# http://www.spamtips.org/2011/01/disable-dnsfromahblrhsbl.html +score DNS_FROM_AHBL_RHSBL 0 +# http://www.spamtips.org/2011/01/disable-rfc-ignorantorg-rules.html +score __RFC_IGNORANT_ENVFROM 0 +score DNS_FROM_RFC_DSN 0 +score DNS_FROM_RFC_BOGUSMX 0 +score __DNS_FROM_RFC_POST 0 +score __DNS_FROM_RFC_ABUSE 0 +score __DNS_FROM_RFC_WHOIS 0 + +# Set headers which may provide inappropriate cues to the Bayesian +# classifier +# +# bayes_ignore_header X-Bogosity +# bayes_ignore_header X-Spam-Flag +# bayes_ignore_header X-Spam-Status + + +# Some shortcircuiting, if the plugin is enabled +# +ifplugin Mail::SpamAssassin::Plugin::Shortcircuit +# +# default: strongly-whitelisted mails are *really* whitelisted now, if the +# shortcircuiting plugin is active, causing early exit to save CPU load. +# Uncomment to turn this on +# +# shortcircuit USER_IN_WHITELIST on +# shortcircuit USER_IN_DEF_WHITELIST on +# shortcircuit USER_IN_ALL_SPAM_TO on +# shortcircuit SUBJECT_IN_WHITELIST on + +# the opposite; blacklisted mails can also save CPU +# +# shortcircuit USER_IN_BLACKLIST on +# shortcircuit USER_IN_BLACKLIST_TO on +# shortcircuit SUBJECT_IN_BLACKLIST on + +# if you have taken the time to correctly specify your "trusted_networks", +# this is another good way to save CPU +# +# shortcircuit ALL_TRUSTED on + +# and a well-trained bayes DB can save running rules, too +# +# shortcircuit BAYES_99 spam +# shortcircuit BAYES_00 ham + +endif # Mail::SpamAssassin::Plugin::Shortcircuit + + +bayes_store_module Mail::SpamAssassin::BayesStore::MySQL +bayes_sql_dsn DBI:mysql:spamassassin +bayes_sql_username amavis + +auto_whitelist_factory Mail::SpamAssassin::SQLBasedAddrList +user_awl_dsn DBI:mysql:spamassassin +user_awl_sql_username amavis |