/etc/postfix/master.cf

amavis unix - - - - 2 smtp
   -o smtp_data_done_timeout=1200
   -o smtp_send_xforward_command=yes

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_client_restrictions=
   -o smtpd_helo_restrictions=
   -o smtpd_sender_restrictions=
   -o smtpd_recipient_restrictions=permit_mynetworks,reject
   -o mynetworks=127.0.0.0/8
   -o strict_rfc821_envelopes=yes
   -o receive_override_options=no_unknown_recipient_checks,no_header_body_checks
retry     unix  -       -       -       -       -       error