A customer running SBS 2003 received the following error in their daily report:
Event ID: 3015
Last Occurance: 2/16/2009 10:37 AM
A non-delivery report with a status code of 5.3.0 was generated for recipient rfc822;email@example.com (Message-ID <xxxxxxxxxxxxxxxxxxxxxxxxx
local>). Causes: Exchange mistakenly attempted mail delivery to an incorrect MTA route. For more information, click http://www.microsoft.com/contentredirect.asp
. Solution: Check your route and topology; use the winroute tool to ensure the routes are properly replicated between servers and routing groups.
Exchange is only used to collect and back up email. They use POP3 mail through their provider, NTD. This is per the customer's requirements.
The customer would like to know why this message would appear in the report if Exchange is not sending/receiving email? I am not sure.