Re: how to trace outgoing SMTP connections failures ?



They contain neither frames nor packets - it captures traffic at the application layer. You'll find out about application-layer interaction between SMTP hosts - SMTP commands/verbs like HELO/EHLO, and responses to those (including error codes).

Logging SMTP protocol activity
http://exchangepedia.com/blog/2006/09/logging-smtp-protocol-activity.html

If you want to dig deeper to the network layer and peek into the packets (for example, to figure out why a network connection or SMTP session isn't established.... ), you'll need to fire up a network capture tool like NetMon or Ethereal and capture packets from/to that host.
--
Bharat Suneja
MVP - Exchange
www.zenprise.com
NEW blog location:
exchangepedia.com/blog
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"Pierre" <pierre.bru@xxxxxxxxx> wrote in message news:6b0d5509-dd43-4dfc-bea4-1a7b89c044ed@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
I thought SMTP logs only contained successful frames...

Pierre

On Nov 26, 10:06 pm, "Susan" <scon...@xxxxxxxxxxxxxxxxxxxx> wrote:
you can crank up smtp protocol logging, but it won't be much fun trying to
trace something like that...

--
Susan Conkey [MVP]

"Pierre" <pierre....@xxxxxxxxx> wrote in message

news:b4d73a18-b7c8-4c9e-8bdc-89b7b8bb8bc9@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx

> hi,

> our exchange server use an outgoing SMTP relay which is not very
> responsive :/
> the admin of the relay says it's not true (of course...)

> is the a way to trace the outgoing SMTP connection which do not
> succeed (mainly for timeout reason), forcing the mail to be re-queued
> for another attempt ?

> TIA,
> Pierre.


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