i am having a perplexing issue and hope to find a resolution. when email Craigslist or with in the domain i recieve the follwoing error.
my environment exchange 2003 - Windows server 2003 all updated with latest sp
i host at a Datacenter, my exchange servers are as follows
1 front end and 1 backend
what i think is happening is email is coming into the front end but SMTP is leaving from the backend on its own IP.
any help would be much appreciated.
Your message did not reach some or all of the intended recipients.
Sent: 10/6/2008 11:33 AM
The following recipient(s) cannot be reached:
firstname.lastname@example.org on 10/6/2008 11:33 AM
The destination server for this recipient could not be found in Domain Name Service (DNS). Please verify the email address and retry. If that fails, contact your administrator.