[mailsrv-postfix]
enabled  = true
filter   = postfix[mode=extra]
action   = iptables-multiport[name=mailsrv, port="smtp,submission,pop3,imap", protocol=tcp, chain=FORWARD]
logpath  = /srv/vol/mailsrv/log/mail.warn
bantime  = 24h
findtime = 10m
maxretry = 3