RE: [Exim] Yahoo! Groups?!?

> -----Original Message-----
> From: exim-users-admin@???
> [mailto:exim-users-admin@exim.org] On Behalf Of Blaise de Cormeilles
> Sent: Wednesday, July 23, 2003 9:41 AM
> To: exim-users@???
> Subject: Re: [Exim] Yahoo! Groups?!?
>
>
> On Wed, Jul 23, 2003 at 12:24:17AM -0400, Troy Settle wrote:
> >
> > All,
> >
> > I'm in the process of troubleshooting a customer having a problem
> > sending/receiving mail from some yahoo group thing.
> Apparently, these
> > are mailing lists?
> >
> > If they are, is there a reason that Yahoo is sending the
> messages with
> > an Envelope sender of the original poster and not something like
> > 'owner-some-group@???' ?
>
> The envelope sender should be set to something similar to
> "sentto-10539362-5-1058554642-blaise=scadian.net@???
> s.yahoo.com".
> (This is taken from a mail that I recently received from a
> Yahoo group; I
> cut and pasted the Return-Path.)
>
> The part before the @ will vary based on the email address the message
> is being sent to and the specific message.
>
> > Looking through my mail logs, I see owner-this, owner-that, and
> > owner-something else. Dozens (hundreds?) of list servers.
> But I can't
> > seem to find any envelope senders that are clearly from the
> Yahoo group
> > thingies.
> >

Oops... I goofed this one (what I get for trying to do this at 12:30 in
the morning).

> > Where this is a problem, is that apparently, Yahoo! Doesn't
> do any sort
> > of sender verification. So, someone spams the group with
> an unrouteable
> > address, my Exim server rejects it, then Yahoo! Suspends the user's
> > activities because it's bouncing mail.
>
> That is configurable on a list-by-list basis; most lists I'm
> on restrict
> posting privileges to members only.

Oops, I goofed this one too. Apparently, the bounces were actually
caused by a .jpg image matching a malware signiture (odd?).


--
Troy Settle
Pulaski Networks
http://www.psknet.com
540.994.4254 ~ 866.477.5638
Pulaski Chamber 2002 Small Business Of The Year