Re: Can't receive mail due to Incomplete SMTP session

Tech-Archive recommends: Fix windows errors by optimizing your registry

Check the SMTP protocol logs to figure out why SMTP session is being
terminated.
If required, bump up Diagnostics Logging for the server (Server | Properties
| Diagnostics Logging) to med/max for transport | smtp. (this logs in the
application event log, as opposed to SMTP protocol logging which logs to a
text file, find path in SMTP VS properties)
--
Bharat Suneja
MCSE, MCT
--------------------------------


"Alexander Alexeev" <talk2alex@xxxxxxxxxxx> wrote in message
news:OazEVTZzFHA.3856@xxxxxxxxxxxxxxxxxxxxxxx
> Hi,
>
> A weird issue has come up at one of our client's site. Four days ago we
> launched a full MS platform to provide crucial network services: Windows
> 2003 servers (inc. DCs), Exchange 2003 SP1 behind ISA 2004 SP1. These
> replaced "third-party" products. All the rules firewall-wise were set up
> properly and the Exchange published. Mail is sent no probs to external
> destinations and so is received from various external accounts we tested,
> plus there is even some spam going in now.
>
> Only today one particular partner has come up who said that their messages
> do not get through to our mailboxes, resulting in an error message saying:
>
> Host ourDomain.com [ourIPaddress] Incomplete SMTP session
> Remote host closed connection.
>
> It is puzzling why this would occur as we seemto have no probs on our side
> and the external senders also report they are sending fine to all other
> destinations. Plus, they also have got Exchange. They are able to initiate
> a Telnet session to our port 25.
>
> Search on Google Groups and MS KB did not bring anything that matched our
> sympthoms, except for some probs known to be had if Exchange is sitting
> behind Cisco PIX firewalls. There're indeed Ciscos on that network but
> they apparently are not PIX.
>
> Anyone encountered anything like that?
>
> Regards,
> Alex A
> _______________________________
> Alexander V. Alexeev
> http://jimmy.qmuc.ac.uk/usr/ci97alex1/
>


.

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