iptables -t nat -A PREROUTING -p tcp --dport 587 -j REDIRECT --to-ports 25
The Postfix SMTP server receives mail from the network and is exposed to the big bad world of junk email and viruses. This document introduces the built-in and external methods that control what SMTP mail Postfix will accept, what mistakes to avoid, and h
Verschiedene Verfahren um selektiv postfix + amavis Spam checks auszuschalten