Mine

smtp      inet  n       -       -       -       -       smtpd
    -o receive_override_options=no_address_mappings
# Virus filtering
smtp-amavis     unix -        -       n     -       2  smtp
    -o smtp_data_done_timeout=1200
    -o smtp_send_xforward_command=yes
127.0.0.1:10025 inet n        -       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 smtpd_error_sleep_time=0
    -o smtpd_soft_error_limit=1001
    -o smtpd_hard_error_limit=1000
    -o strict_rfc821_envelopes=yes
    -o receive_override_options=no_unknown_recipient_checks,no_header_body_check
s