We are running Small Business Server 2011 with Exchange 2010. it has been patched and updated recently to the latest updates.
We had a user, AJ, that left the company 3 years ago. His account was deleted a few months, maybe 6, after he left. The mailbox was deleted and the AD User. when he returned we created the account as new and added a mailbox. we are having some issues with people not being able to email him. we get hard bounces with what looks like and LDAP lookup string being the unknown address.
I have done some research and it points to the X500 address being wrong. everything I have used to find the proper legacy email DN has failed. i used a powershell command from the exchange management console, but that did not seem to work. all the examples I have read about don't quite line up with what I'm seeing. I was told to get the legacy info from ADSI, but I don't have the attribute tab.
Any suggestions that might help?