[mailsrv-postfix]
enabled  = true
filter   = postfix[mode=extra]
action   = iptables[name=mailsrv-postfix, port="smtp,submission,pop3,imap", protocol=tcp]
backend  = polling
logpath  = /srv/vol/mailsrv/log/mail.log
bantime  = 24h
findtime = 5m
maxretry = 3