Author: Sean Linus Date: To: exim-users Subject: Re: [Exim] unexpected disconnection while reading SMTP command
> This kind of problem, if it is consistent and repeatable, is often > caused by interfering things in the network path. Firewalls, for
> instance. Cisco PIX is notorious.
Yep, seems like since Aug 16 according to my log. The amazing part is
only from that domain we're having a problem.
> Does it depend on message size? Nope. A simple test mail also failed.
> The ultimate debugger for this is to use tcptrace to see exactly what
> packets you are seeing on the network connection. Any guide how to use tcptrace in accordance to this problem :)
