mydomain.com - Exchange 2003 w/SP2
theirdomain.com - Unknown
user1@mydomain.com (forwarded to user1@theirdomain.com)
user1@theirdomain.com
user2@mydomain.com
user3@mydomain.com
me@mydomain.com
me@mydomain.com sending to user1@mydomain.com or user1@theirdomain.com = No Problem
user2@mydomain.com sending to user1@mydomain.com or user1@theirdomain.com = NDF
user3@mydomain.com sending to user1@mydomain.com or user1@theirdomain.com = NDF
user2 and user3 receive:
Your message did not reach some or all of the intended recipients.
Subject: RE: update for WebEx freestyle
Sent: 10/12/2007 12:56 PM
The following recipient(s) cannot be reached:
User1 (External) on 10/12/2007 12:59 PM
You do not have permission to send to this recipient. For assistance, contact your system administrator.
<mail.mydomain.com #5.7.1 smtp;550 5.7.1 Unable to relay for user1@theirdomain.com>
I also get this in the event log:
Event Type: Error
Event Source: MSExchangeTransport
Event Category: SMTP Protocol
Event ID: 7004
Date: 10/12/2007
Time: 9:59:06 AM
User: N/A
Computer: MAIL
Description:
This is an SMTP protocol error log for virtual server ID 1, connection #783. The remote host "XX.XXX.XXX.XX", responded to the SMTP command "rcpt" with "550 5.7.1 Unable to relay for user1@theirdomain.com". The full command sent was "RCPT TO:<user1@theirdomain.com>
". This will probably cause the connection to fail.
For more information, click
http://www.microsoft.com/contentredirect.asp.
As far as I know, user2 and user3 are the only ones that can't send to user1 at either domain. I have checked both accounts for user1 on my side in AD and "Accept Messages" is set to "from everyone". I also sent an email to admin on thierdomain.com to see if somehow user2 and user3 are blacklisted somewhere in their system.
Any other ideas what would cause this?
Start Free Trial
