--- postfix_compatibility_level: '3.6' postfix_mynetworks_style: 'host' postfix_mynetworks: - 127.0.0.0/8 postfix_inet_interfaces: 'all' postfix_inet_protocols: 'all' postfix_relayhost: '' postfix_smtpd_relay_restrictions: - 'permit_mynetworks' - 'permit_sasl_authenticated' - 'defer_unauth_destination' postfix_recipient_delimiter: '+' postfix_mailbox_size_limit: '0' postfix_message_size_limit: '10240000' postfix_smtp_tls_security_level: 'may' postfix_smtp_tls_ciphers: 'medium' postfix_smtp_tls_loglevel: '0' postfix_smtp_tls_protocols: - '!SSLv2' - '!SSLv3' - '!TLSv1' postfix_smtp_tls_exclude_ciphers: - 'MD5' - 'DES' - 'ADH' - 'RC4' - 'PSD' - 'SRP' - '3DES' - 'eNULL' - 'aNULL'