From: Joshua E Warchol (no email)
Date: Mon Mar 01 2004 - 12:00:36 EST
I think that might have helped. Perhaps when smtp is run with the
-v option it could include that?
Also, it appears the issue was related to 96 byte packets specifically.
As I'm not a network engineer by any stretch of imagination, I'll
differ any comment on the source of the error and just say that I'm
glad postfix was able to handle this gracefully.
On Fri, Feb 27, 2004 at 10:39:13PM -0500, Wietse Venema wrote:
> Joshua E Warchol:
> > Wieste and Victor,
> >
> > Thank you very much for the questions and suggestions . It appears the
> > problem was caused by a rule put into a number of routers blocking
> > attacks to the back-door of MyDoom. I'll try to get more specific
> > information to close up the troubleshooting (as these are Cisco routers
> > and not specifically firewalls [no nat involved at all]). I think it
> > was Victor who made the correct first guess about multiple routes and
> > something inspecting packets. Thanks very much!
> >
> > Queues are back down to their normal spam-bounce filled selves. I can
> > go back to my main task of waiting eagerly for Postfix 2.1 Sorry to
> > interupt you on that one Wieste :)
>
> Would it have helped if Postfix logged the SMTP client source port?
>
> Wietse
-- Joshua Warchol UNIX Systems Administrator DSL.net
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