I've been researching an issue where emails are getting rejected with these NDR errors:
An error occurred while trying to deliver this message to the recipient's e-mail address. Microsoft Exchange will not try to redeliver this message for you. Please try resending this message, or provide the following diagnostic text to your system administrator.
The following organization rejected your message: smoothwall.
_____ Sent by Microsoft Exchange Server 2007
Diagnostic information for administrators:
#552 www.w3.org in multi.surbl.org: 74.63.164.174 ## #552 www.w3.org in multi.surbl.org: 204.232.162.153 ##
If I'm reading this correctly the emails are being rejected cause the multi.susrbl.org found a reference to w3.org in a HTML email??
How can this be fixed/removed/corrected?
Thanks, Duane