I have a user getting these kickbacks when they try to send email to certain outside addresses. They can send all other mail fine internally and externally. If anyone else tries to send to this addresses the email goes through just fine. The users can also send to this address successfully through OWA. This is starting to happen with multiple people and im not sure whats going on. This is happening with both outlook 2003 and 2007 on both XP or vista. Any help would be appreciated.
Your message did not reach some or all of the intended recipients.
Sent: 11/7/2008 10:34 AM
The following recipient(s) could not be reached:
"firstname.lastname@example.org' on 11/7/2008 10:34 AM
None of your e-mail accounts could send to this recipient.