# Mail servers [postfix] enabled = true port = smtp,465,submission logpath = %(postfix_log)s backend = %(postfix_backend)s [postfix-rbl] enabled = true port = smtp,465,submission logpath = %(postfix_log)s backend = %(postfix_backend)s maxretry = 1 [...] [dovecot] enabled = true port = pop3,pop3s,imap,imaps,submission,465,sieve logpath = %(dovecot_log)s backend = %(dovecot_backend)s [...] # Mail servers authenticators: might be used for smtp,ftp,imap servers, so # all relevant ports get banned [postfix-auth] enabled = true filter = postfix-auth action = iptables-multiport[name=postfix, port="http,https,smtp,submission,pop3,pop3s,imap,imaps,sieve", protocol=tcp] logpath = /var/log/mail.log [postfix-sasl] enabled = true port = smtp,465,submission,imap3,imaps,pop3,pop3s logpath = %(postfix_log)s backend = %(postfix_backend)s