Hi All
I can see this question has been asked allot, but none of the answers seem to be the same as my issue
Exchange 2007 / SBS 2008
I have 3x domain email addresses for all of my recipients
@domain1.com (default reply)
@domain2.com
@domain3. com
@domain4.com
all of a sudden, all emails getting sent to anyone with @domain2.com are bouncing, to start with there was no reponse, but the mail logs were showing "550 5.1.1 User unknown" in the logs
So I unticked "Block messages to recipients not listed in the GAL" on exhange anti spam, after this the messages were getting to the exchange server, but then getting bounced with the above message
I have tried removing domain2.com from the email address policy and the acceprted domains, and readding it, but it made no difference
all my other domains still work fine, its only this one
I'm at my wits end with this, if anyone can shed some light it would be appreciated
Let me know what other info i need to provide
Cheers