Last weekend we moved our SQL Server from one server (Windows 2003, SQL 2005) to a new server (Windows 2012, SQL 2012) and copied over all the users and roles to the new server. The Migration went rather smoothly and the users are able to use the database without problem however all the notifications that come from that server are no longer sent. The accounts are still there the Jobs are still there and running without problem but the notifications are not going out. I have checked the SQL Agent and emailing is enabled and I can send out emails to my email from Database Email yet no notifications are sent.
What could be the issue? No firewall is on and the Exchange server it not rejecting the emails eventhough they are being sent from DB Mail. I Don't know where else to look.