COMMUNCIATIONS FAILURE - UNABLE TO DELIVER

[tmandu]

Microsoft Exchange server 5.5
Windows NT Server

Recently I received an email from a 'jdoe@exch.abcd.org'

I tried to respond to him and this is what I received;

Your message did not reach some of all of the intended recipients.

Subject :XXXXXX
Sent: 05/21/2001 9:30AM


The following recipient(s) could not be reached:

'jdoe@exch.abcd.org' on 5.21/2001 9:30am
Unable to deliver the message due to a communications failure

The MTS-ID of the original message is; c=USa=;p=ourname ?
ourname;I=exchangeservername-010521132946X-422
MSEXCH:IMS:Company name: Domain name :exchangeservername 3503 (000B099C) 503 please introduce yourself


I tried to lower the nyumber of connections through Administration Connections Internet mail service _ connections advanced - max no of connections setn (changed from 16 to 1. I then stopped and restarted M S Exchange server as directed .

I have also had this problem in the past with another email server that we could not respond to.

Thanks

Any ideas -Tom

 

[rws]

The server you are communicating with is an smtp server. Exchange is an esmtp server. It begins a session by saying EHLO. An smtp server does not recognize this and asks for a HELO instead. Usually Exchange realizes this and changes to HELO, but some servers ask for the HELO in a way that Exchange doesn't understand. The workaround is to disable outbound esmtp with a registry entry. See Q194132.

Rereading your post, it seems to imply that the other server is also Exchange, in which case I'm at a loss!

 

[stuck]

Hello,

I am having a similar situation with my Exchange 5.5...

I get quite a few emails that get sent to us and never end up being received. The sender gets a could not be sent because: (Deferred: Connection timed out with...) error..

I can see the smtp connection come through the event viewer. I get an Event id of 2000 (A new TCP/IP connection has been received from host #.#.#.# Logfile 0000000.LOG

There are no further errors...

When a good connection comes in it gives me event id 2000 and then it changes into an even id of 2002 with a message of (A new message from ..... has been received and moved to temp folder.... with one local receipient....

Any ideas???