2021-05-29 21:39:14 -04:00
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# See /usr/share/postfix/main.cf.dist for a commented, more complete version
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# Server Information
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smtpd_banner = $myhostname Library of Code sp-us Staff Services | ESMTP (Debian/GNU)
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myhostname = staff.libraryofcode.org
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myorigin = /etc/mailname
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mydestination = $myhostname, libraryofcode.org
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mynetworks = 127.0.0.0/8 [::ffff:127.0.0.0]/104 [::1]/128 63.141.252.130
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mail_name = Library of Code sp-us | Staff Services
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# Relay Settings
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relayhost =
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relay_domains = lists.libraryofcode.org
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# MDA & Delivery
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append_dot_mydomain = no
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biff = no
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mailbox_transport = lmtp:unix:private/dovecot-lmtp
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message_size_limit = 1073741824
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transport_maps = hash:/etc/postfix/transport
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mailbox_size_limit = 0
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recipient_delimiter = +
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# Authentication
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smtpd_sasl_auth_enable = yes
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broken_sasl_auth_clients = yes
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# TLS parameters
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smtpd_tls_cert_file=/etc/postfix/ssl/globalsign.crt
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smtpd_tls_key_file=/etc/postfix/ssl/globalsign.key.pem
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smtpd_use_tls=yes
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smtpd_tls_session_cache_database = btree:${data_directory}/smtpd_scache
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smtp_tls_session_cache_database = btree:${data_directory}/smtp_scache
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smtp_tls_security_level = may
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smtpd_tls_security_level = may
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smtp_tls_note_starttls_offer = yes
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smtpd_tls_CAfile = /etc/postfix/ssl/globalsign.ca.crt
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smtpd_tls_loglevel = 1
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smtpd_tls_received_header = yes
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smtpd_tls_session_cache_timeout = 3600s
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tls_random_source = dev:/dev/urandom
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# RESTRICTIONS
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smtpd_relay_restrictions =
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permit_mynetworks,
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permit_sasl_authenticated,
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defer_unauth_destination,
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smtpd_helo_restrictions =
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permit_mynetworks,
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reject_non_fqdn_helo_hostname,
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reject_invalid_helo_hostname,
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reject_unknown_helo_hostname,
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permit,
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smtpd_sender_restrictions =
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reject_unknown_sender_domain,
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reject_unknown_reverse_client_hostname,
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reject_unknown_client_hostname,
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reject_sender_login_mismatch,
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permit_mynetworks,
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permit_sasl_authenticated,
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permit,
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smtpd_recipient_restrictions =
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reject_unauth_pipelining,
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reject_non_fqdn_recipient,
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reject_unknown_recipient_domain,
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permit_mynetworks,
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check_policy_service inet:127.0.0.1:10023,
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reject_rbl_client sbl.spamhaus.org,
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reject_rbl_client xbl.spamhaus.org,
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permit,
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# Local Aliases
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alias_maps = hash:/etc/aliases, hash:/var/lib/mailman/data/aliases
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alias_database = hash:/etc/aliases
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# Virtual Alises
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smtpd_sender_login_maps = hash:/etc/postfix/virtual-mailbox-users
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virtual_alias_maps = hash:/etc/postfix/virtual
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# Network Settings & Milters
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inet_interfaces = all
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inet_protocols = all
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milter_default_action = accept
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milter_protocol = 6
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smtpd_milters =
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## OpenDKIM
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inet:localhost:8891,
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## OpenDMARC
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local:/opendmarc/opendmarc.sock,
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## ClamAV
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#inet:localhost:8892
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non_smtpd_milters = $smtpd_milters
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# Misc
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readme_directory = no
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compatibility_level = 2
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unknown_local_recipient_reject_code = 550
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mailman_destination_recipient_limit = 1
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