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Email bouncing back with error - conversation with **** timed out while sending message

Posted on 2009-05-06
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Last Modified: 2012-05-06
Hi All,
We have an independent contrator sending reports to multiple recipients at a client's company. Recently the contractor has been receiving a bounce back from our client saying;
 "From: Mail Delivery System [mailto:MAILER-DAEMON@toc-mail.***.com]
Sent: Tuesday, April 21, 2009 4:54 PM
To: ******
Subject: Undelivered Mail Returned to Sender
This is the Tumbleweed MailGate 3.6.1 program at host toc-mail.***.com.
I'm sorry to have to inform you that your message could not
be delivered to one or more recipients. It's attached below.
For further assistance, please send mail to <postmaster>
If you do so, please include this problem report. You can
delete your own text from the attached returned message.
The Tumbleweed MailGate 3.6.1 program
<****@********.com>: conversation with
mail.************.com[**.***.***.***] timed out while sending message
body"

I had the contractor send the same message to my email account and then I forwarded it to the multiple recipients in the original email, the result being the email is received by the intended reipients. The email does also contain attachments which are less than 300KB.
I have researched this on both on the internet and Experts-Exchange and haven't found a solution yet. I'm hoping some one can shed some light on this.

Thank you for your time!
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Question by:LangtechEE
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4 Comments
 
LVL 6

Expert Comment

by:ilantz
ID: 24317607
seems like an issue in the mailgate .. dns issues or perhaps an active block by the receiving side ...
could you explain the topology in more details ?
0
 

Author Comment

by:LangtechEE
ID: 24317693
The contractor sending email is an external domain which we do not have access to. The topology of our client consists of one exchange server using symantec mail security for exchange. We have added the contractor's email address and domain to the white list of the SMSE with no difference. Also we haven't added our company's domain (we are on a seperate domain than our client) to the white list, and as I mentioned, we can send the email to our client without bounces. Does that help?

Thanks again
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LVL 6

Accepted Solution

by:
ilantz earned 500 total points
ID: 24317835
sounds like an issue with the contractor smtp relay.
let them work their system first.
0
 

Author Closing Comment

by:LangtechEE
ID: 31578586
Thanx! Contractors said it was our client's network. Came back with my own research and your answer and they said they'd look in to it. Didn't call me back but email started working. HeHeHe
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