We have a CRM application that send notice to customers. We recenlty installed exchange 2007 and now the relaying does not work. I created a send connector to allow relaying for this server but still the e-mails are being returned with the following NDR:
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.
Diagnostic information for administrators:
Generating server: POLARIS.SDGLibrary.local
#< #5.7.1 smtp;550 5.7.1 Unable to relay> #SMTP#
Original message headers:
Received: from POLARIS ([10.1.2.7]) by POLARIS.SDGLibrary.local with Microsoft
SMTPSVC(7.0.6001.18440); Sun, 25 Apr 2010 06:00:33 -0500
Date: Sun, 25 Apr 2010 06:00:33 -0500
Content-Type: text/html; charset="us-ascii"
X-OriginalArrivalTime: 25 Apr 2010 11:00:33.0913 (UTC) FILETIME=[872CAE90:01CAE466]