Jim Wilson wrote:

> "Curtis L. Olson" said:
>
> > David Megginson wrote:
> >
> > > I'm under a serious spam attack from an infected computer of someone
> > > on the list.  Here is where the spam is originating:
> > >
> > >   user-24-214-247-18.knology.net
> > >
> > > Many of the spams are arriving with Curt's e-mail address spoofed on
> > > them, and unfortunately, baron.me.umn.edu seems happy to relay them
> > > for the infected computer.  In fact, baron is relaying *all* of the
> > > spam, even the stuff return addresses like [EMAIL PROTECTED]
> >
> >
> > Going on the defensive here.  mail.flightgear.org is *not* an open
> > relay.  It only accepts mail for addresses @flightgear.org.  It does
> > *not* accept email from an arbitrary location and forward to any other
> > arbitrary location.
> >
> > The big problem is that these viruses can leverage the user's address
> > book to spoof plausible to/from addresses and they get lucky far too
often.
> >
> > The spammers/viruses are nearly making email useless.... :-(
> >
> > I average receiving a new spam mesage about every 5 minutes.
> >
>
> We're getting creamed here but not seeing most of it.  SpamCop which we've
> been using for a while, does a good job of blocking those idiot virus
spams
> from misconfigured mail servers.  Of course this has started producing
some (a
> very small number) complaints as "legit" servers get listed.  It is
currently
> getting 25 per hour (based on prior 5 weeks average) and that is double
what
> it was a month ago.
>
> Also I've added a slew of procmail rules to filter out the stupid subjects
> they use (e.g. "re: Thank You!").  After all that I still end up manually
> clearing about 25 a day.
>
> On the Postgres list someone mentioned that he discovered a signature in
the
> HELO that he was able to use to trap most virus emails.

I use popfile under windows and I must say that it is able to filter nearly
100% of junk mail and viruses

popfile is multi platform and can be found at sourceforge

-Fred



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