Re: Unable to send e-mail to one domain.

This looks like their problem. You might want to contact the postmaster of
that domain.
--
Ed Crowley
MVP - Exchange
"Protecting the world from PSTs and brick backups!"

"ghillard" <ghillard@xxxxxxxxxxxxxxxxxxxxxxxxx> wrote in message
news:4277A38C-3FE2-4F1E-9A78-2113F3D72842@xxxxxxxxxxxxxxxx
We are running Exchange 2003 SP2 with the current patches. Our users are
not
able to send mail to a certain domain. The following errors are logged on
our Application event log when attempting to send. In this case the same
message was sent to multiple reciepients in other external domains without
an
issue.

Thank you in advance for your assistance.

Type: Warning
Source: MSExchangeTransport
Event ID: 4007
Event Time: 9/19/2007 4:46:08 PM
User: n/a
Computer: MAILSERVER
Description:
Message delivery to the host 'XX.XXX.XX.XX' failed while delivering to the
remote domain
'theirdomain.org' for the following reason: An SMTP protocol error
occurred.
The SMTP verb which caused the error is 'MAIL'. The response from the
remote
server is '421 Error: timeout exceeded
'.



Type: Warning
Source: MSExchangeTransport
Event ID: 7002
Event Time: 9/19/2007 4:46:08 PM
User: n/a
Computer: MAILSERVER
Description:
This is an SMTP protocol warning log for virtual server ID 1, connection
#406.
The remote host "XX.XXX.XX.XX", responded to the SMTP command "mail" with
"421 Error: timeout exceeded ".
The full command sent was "MAIL FROM:<user@xxxxxxxxxxxx> SIZE=959774 ".
This may cause the connection to fail.
For more information, click http://www.microsoft.com/contentredirect.asp.






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