append_dot_mydomain = no biff = no compatibility_level = 2 inet_interfaces = loopback-only inet_protocols = ipv4 mynetworks = 127.0.0.0/8 [::ffff:127.0.0.0]/104 [::1]/128 recipient_delimiter = + smtpd_tls_cert_file=/etc/ssl/certs/ssl-cert-snakeoil.pem smtpd_tls_key_file=/etc/ssl/private/ssl-cert-snakeoil.key smtpd_tls_session_cache_database = btree:${data_directory}/smtpd_scache smtpd_use_tls=yes smtp_tls_session_cache_database = btree:${data_directory}/smtp_scache smtp_use_tls=yes