113 lines
3.1 KiB
CFEngine3
113 lines
3.1 KiB
CFEngine3
#===
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# Base configuration
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#===
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myhostname = smtp.deuxfleurs.fr
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alias_maps = hash:/etc/aliases
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alias_database = hash:/etc/aliases
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myorigin = /etc/mailname
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mydestination = smtp.deuxfleurs.fr
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mynetworks = 127.0.0.0/8 [::ffff:127.0.0.0]/104 [::1]/128 192.168.1.0/24
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mailbox_size_limit = 0
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recipient_delimiter = +
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inet_protocols = all
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inet_interfaces = all
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message_size_limit = 204800000
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smtpd_banner = $myhostname
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biff = no
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append_dot_mydomain = no
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readme_directory = no
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compatibility_level = 2
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#===
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# TLS parameters
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#===
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smtpd_tls_cert_file=/etc/ssl/postfix.crt
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smtpd_tls_key_file=/etc/ssl/postfix.key
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smtpd_tls_dh1024_param_file=auto
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smtpd_use_tls=yes
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smtpd_tls_session_cache_database = btree:${data_directory}/smtpd_scache
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smtp_tls_session_cache_database = btree:${data_directory}/smtp_scache
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#smtp_tls_policy_maps = hash:/etc/postfix/tls_policy
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smtp_tls_security_level = may
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#===
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# Remove privacy related content from emails
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#===
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mime_header_checks = regexp:/etc/postfix/header_checks
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header_checks = regexp:/etc/postfix/header_checks
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#===
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# Handle user authentication (handled by dovecot)
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#===
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smtpd_sasl_auth_enable = yes
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smtpd_sasl_path = inet:dovecot-auth.service.prod.consul:1337
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smtpd_sasl_type = dovecot
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#===
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# Restrictions / Checks
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#===
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# -- Inspired by: http://www.postfix.org/SMTPD_ACCESS_README.html#lists
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# Require a valid HELO
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smtpd_helo_required = yes
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# As we use the same postfix to send and receive,
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# we can't enforce a valid HELO hostname...
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#smtpd_helo_restrictions =
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# reject_unknown_helo_hostname
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# Require that sender email has a valid domain
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smtpd_sender_restrictions =
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reject_unknown_sender_domain
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# Delivering email policy
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# MyNetwork is required by sogo
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smtpd_recipient_restrictions =
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permit_sasl_authenticated
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permit_mynetworks
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reject_unauth_destination
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reject_rbl_client zen.spamhaus.org
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reject_rhsbl_reverse_client dbl.spamhaus.org
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reject_rhsbl_helo dbl.spamhaus.org
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reject_rhsbl_sender dbl.spamhaus.org
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# Sending email policy
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# MyNetwork is required by sogo
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smtpd_relay_restrictions =
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permit_sasl_authenticated
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permit_mynetworks
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reject_unauth_destination
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# Disable SMTP smuggling attacks
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# https://www.postfix.org/smtp-smuggling.html
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smtpd_forbid_unauth_pipelining = yes
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smtpd_discard_ehlo_keywords = chunking
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smtpd_forbid_bare_newline = yes
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#===
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# Rate limiting
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#===
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smtpd_client_connection_rate_limit = 2
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# do not rate-limit ourselves
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# in particular, useful for forgejo who opens a lot of SMTP connections
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smtpd_client_event_limit_exceptions = $mynetworks /etc/postfix/rate-limit-exceptions
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slow_destination_recipient_limit = 20
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slow_destination_concurrency_limit = 2
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#====
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# Transport configuration
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#====
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default_transport = smtp-ipv4
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transport_maps = hash:/etc/postfix/transport
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virtual_mailbox_domains = ldap:/etc/postfix/ldap-virtual-domains.cf
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virtual_mailbox_maps = ldap:/etc/postfix/ldap-account.cf
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virtual_alias_maps = ldap:/etc/postfix/ldap-alias.cf
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virtual_transport = lmtp:dovecot-lmtp.service.prod.consul:24
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#===
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# Mail filters
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#===
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milter_default_action = accept
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milter_protocol = 6
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smtpd_milters = inet:opendkim.service.prod.consul:8999
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non_smtpd_milters = inet:opendkim.service.prod.consul:8999
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