Spamcop listed - need help to diagnose why

[Danial Thom]

--- Robert Slade <bsd at bathnetworks.com> wrote:

> On Sat, 2006-01-07 at 05:45, David Banning
> wrote:
> > My server just was listed with Spamcop. 
> Before I exercise my -one time-
> > option to de-list it I need to verify that
> indeed my server is not sending
> > spam. I have 3 win boxes routing through my
> FreeBSD box.
> > 
> > Also there are a few windows computers in the
> outside world that send
> > mail through my server via port 26 using
> their login and password.
> > 
> > I know it is possible for viruses to install
> a stand-alone smtp server
> > on win boxes. That is one suspicion I have.
> > 
> > My question;
> > What tool would I use to see if unauthorized
> mail is being sent via
> > my server? Note that I am running tmda, so
> that I have around 80 emails per
> > minute being sent out; to request
> verification on my standard incoming
> > mail, (therefore it is too complicated to
> just watch -all- mail being
> > sent out, and try and decode legitimate from
> illegitimate).
> 
> There is your problem TMDA is most likely the
> cause. Such programmes are
> in effect adding to the spam problem. Nearly
> all spam has a forged from
> address and all programmes such as TMDA do is
> send a challenge to an
> innocent 3rd party. Whist it looks like it
> reduces your spam all you do
> is in effect spam someone else. When your
> e-mail address has been used
> in a spam run by a spammer and you start
> getting 10s of these challenge
> an hour it is quite easy to report 1 my
> accident. If you look at the
> Spamcop reporting page you will see a warning
> about just this situation.
> 
> I suppose that the real answer is to stop
> compounding the spam problem
> and use a combination of spamassassin and block
> lists.
> 
> BTW I make it a point never to respond to
> challenges.
> 
> Rob  

Consider being "listed" a privilege; half the
universities in the world are listed as spammers.
Anyone who uses those stupid, anal-retentive
services deserves to miss getting important mail.

DT


		
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