I have my primary domain which is assigned as the email address policy in Exchange 2010. I also have two other domains which are two other Nonprofits that we run / do work for. I have never had an issue unchecking the auto apply policy box and assigning a different SMTP address to a user.
Now we have people working across companies and they need to receive email for both address. Ie. Tim@domain1.org (would be the primary) Tim@domain2.org (would be an alias email address). Both would end up in the primary email box.
I have been able to send emails to those domains with no problems externally/internally to a couple of users. However, when we began using it on a wider scale some of the addresses started to fail.
At first I thought it was McAfee SAAS but after looking at the exchange server the emails are hitting the server and failing to deliver.
Exchange 2010 220.127.116.11
Windows Server 2008R2
I have attached the file with what I am seeing.
Can anyone give me some pointers?