Frank Cusack:
> > Perhaps surprisingly, Postfix does not send or receive network
> > packets. Instead, packets are handled by the TCP/IP implementation
> > in the operating system kernel.
> >
> > If anything decides "prematurely" that the connection is dead, it
> > is your operating system kernel not Postfix.
>
> Unless of course postfix has a bug (heaven forbid).
Well, if you can provide unmodified evidence, then people
can look into this.
- I already asked for the content of the packet dump including
packet headers, packet flags, packet contents and so on.
Based on an analysis of this,
- I may also ask you to collect Postfix verbose logging
for that particular IP address.
That gives the Postfix view of what's going on.
Based on that,
- I may also ask you to collect a system call trace.
That would give the kernel's view of what's going on.
In the meantime, it would help if you could stop posting further
speculation and theoretizing until we have had a chance to look at
actual concrete unmodified evidence.
Wietse
