I am noticing a new issue. It seems that two users have experienced the same NDR and I am not sure how to resolve this?? Any suggestions what this is or how to fix it?????
Here it is:
Delivery has failed to these recipients or distribution lists:
Your message wasn't delivered because of security policies. Microsoft Exchange will not try to redeliver this message for you. Please provide the following diagnostic text to your system administrator.
The following organization rejected your message: smtp27.gate.dfw1a.rsapps.net.
Sent by Microsoft Exchange Server 2007
Diagnostic information for administrators:
Generating server: SERVER.***.local
smtp27.gate.dfw1a.rsapps.net #550 5.7.1 <email@example.com>: Relay access denied. ##
Original message headers:
Received: from SERVER.***.local ([fe80::ecac:6eab:141:f0fe]) by
SERVER.***.local ([fe80::ecac:6eab:141:f0fe%10]) with mapi; Fri, 6 May 2011