[Mimedefang] rejecting on helo,drive-by-relay,forged_sender,

[Chris Myers]

----- Original Message ----- 
From: "Lucas Albers" <admin at cs.montana.edu>
To: <mimedefang at lists.roaringpenguin.com>
Sent: Tuesday, January 13, 2004 1:46 AM
Subject: [Mimedefang] rejecting on helo,drive-by-relay,forged_sender,


> I've been playing around with rejecting on helo/name/ip matching.
>
> If domain of helo and $hostname don't match and machine is a just an ip
> address, reject the email.
> [...]
> caveats:
> A number of sites give just localhost names, even big name sites.

Other caveats:

Some ISP's don't bother to set up reverse DNS for their customers so
$RelayHost will never match $helo...  Sad but true.

Chris