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5.2.4. Postfix


For Postfix integration, enter the following from a terminal prompt:


sudo postconf -e 'content_filter = smtp-amavis:[127.0.0.1]:10024'


Next edit /etc/postfix/master.cf and add the following to the end of the file:


smtp-amavis unix - - - - 2 smtp

-o smtp_data_done_timeout=1200

-o smtp_send_xforward_command=yes

-o disable_dns_lookups=yes

-o max_use=20


127.0.0.1:10025 inet n - - - - smtpd

-o content_filter=

-o local_recipient_maps=

-o relay_recipient_maps=

-o smtpd_restriction_classes=

-o smtpd_delay_reject=no

-o smtpd_client_restrictions=permit_mynetworks,reject

-o smtpd_helo_restrictions=

-o smtpd_sender_restrictions=

-o smtpd_recipient_restrictions=permit_mynetworks,reject

-o smtpd_data_restrictions=reject_unauth_pipelining

-o smtpd_end_of_data_restrictions=



-o mynetworks=127.0.0.0/8

-o smtpd_error_sleep_time=0

-o smtpd_soft_error_limit=1001

-o smtpd_hard_error_limit=1000

-o smtpd_client_connection_count_limit=0

-o smtpd_client_connection_rate_limit=0

-o receive_override_options=no_header_body_checks,no_unknown_recipient_checks,no_milters


Also add the following two lines immediately below the "pickup" transport service:


-o content_filter=

-o receive_override_options=no_header_body_checks


This will prevent messages that are generated to report on spam from being classified as spam. Now restart Postfix:


sudo systemctl restart postfix.service


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