exherbo-dockermail/core/config/postfix/postfix.main.cf

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# See /usr/share/postfix/main.cf.dist for a commented, more complete version
# Debian specific: Specifying a file name will cause the first
# line of that file to be used as the name. The Debian default
# is /etc/mailname.
#myorigin = /etc/mailname
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inet_protocols = all
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smtpd_banner = $myhostname ESMTP $mail_name
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biff = no
# appending .domain is the MUA's job.
append_dot_mydomain = no
# Uncomment the next line to generate "delayed mail" warnings
#delay_warning_time = 4h
readme_directory = no
# TLS parameters
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smtpd_tls_cert_file=/etc/ssl/server/email.crt
smtpd_tls_key_file=/etc/ssl/server/email.key
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smtpd_use_tls=yes
smtpd_tls_session_cache_database = btree:${data_directory}/smtpd_scache
smtp_tls_session_cache_database = btree:${data_directory}/smtp_scache
# See /usr/share/doc/postfix/TLS_README.gz in the postfix-doc package for
# information on enabling SSL in the smtp client.
myhostname = localhost
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#alias_maps = hash:/etc/mail/aliases
#alias_database = hash:/etc/mail/aliases
mydestination = localhost.localdomain, localhost
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relayhost =
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mynetworks = 127.0.0.0/8 [::1]/128
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mailbox_size_limit = 0
recipient_delimiter = +
# SMTP configuration for incoming mail (port 25)
# Outgoing mail (port 587) configuration is specified in master.cf
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# Opportunistic TLS
smtp_tls_security_level = may
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# allow all connections (since we want to receive mail from outside)
smtpd_client_restrictions = permit
# Don't talk to mail systems that don't know their own hostname.
# With Postfix < 2.3, specify reject_unknown_hostname.
smtpd_helo_restrictions = permit
# Don't accept mail from domains that don't exist.
smtpd_sender_restrictions = permit
# Only accept mail where this server is the final destination
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smtpd_relay_restrictions = permit_auth_destination, permit_mynetworks, reject
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# Mail thats not for us gets filtered out by smtpd_relay_restrictions
# When the mail is for us, we just accept everything. (could add spam blocklists/user checking etc. here)
smtpd_recipient_restrictions = permit
# Delivery to dovecot
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#alias_maps = hash:/etc/mail/aliases
#alias_database = hash:/etc/mail/aliases
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virtual_alias_maps = hash:/etc/postfix/virtual
virtual_mailbox_domains = /etc/postfix/virtual-mailbox-domains
virtual_mailbox_maps = hash:/etc/postfix/virtual-mailbox-maps
virtual_transport = dovecot
dovecot_destination_recipient_limit = 1
# additional authentication settings
smtpd_tls_auth_only = yes
smtpd_sasl_auth_enable = yes
smtpd_sasl_type = dovecot
smtpd_sasl_path = private/auth