I am having problems with email bouncing Back on one of our email addresses.
We are running Exchange on SBS 2003 and (as far as I can tell) Have smart hosts properly configured.
I have checked that the domain is not blacklisted and I can send email internally as well as from other addresses on the same domain through the same gateway. The problem only exists on the email address/user account.
When I checked the Message Tracking Center in Exchange System Manger for the test emails I found that the SMTP Transfer was started and then immediately a Non-Delivered Report was Generated.
I have also Managed to use telnet to send a message through our SMTP server as that email address.
I'm Stumped. Can anyone in the cloud figure it out?
Attached is the bounce back reply.
Your message did not reach some or all of the intended recipients.
Sent: 11/18/2008 1:51 PM
The following recipient(s) could not be reached:
[user]@Hotmail.com on 11/18/2008 1:51 PM
There was a SMTP communication problem with the recipient's email server. Please contact your system administrator.
<[mydomain].com #5.5.0 smtp;550 Administrative prohibition>