[Mimedefang] Testing for port #/TLS in filter_relay

[Philip Prindeville]

Steffen Kaiser wrote:
> Have you considered using an IDS-alike before port 25? I mean you 
> could drop/reject SYN packets from the same host, if you've seen more 
> than n in the last minute from the same host.

I can do that now with Sendmail.

-Philip