Author: Alan J. Flavell Date: To: Exim users list Subject: Re: [Exim] How to bypass last Received: server to apply block lists
to previous server
On Sat, 20 Sep 2003, Suresh Ramasubramanian wrote:
> Patrick Starrenburg [9/20/2003 5:23 PM] :
>
> > Has anyone found themselves in this situation / developed anything to
> > address this? I don't believe we can address this with ACL's but may have
> > to look at developing an Exim local scan function which "strips off" the
> > last Received: header for server B (which will always be the same) and
> > then does block list lookups etc. on (real) IP of server A.
>
> Spamassasin can do this for you.
But by then it's too late to safely reject mail. You're risking the
corporate gateway sending rejection notices to innocent third parties
whose addresses were counterfeited by spammers and viruses, for
example.
