I am having a strange issue that I hope someone can help me with.
Last night I migrated a test user over to the Exchange Online environment from our onsite Exchange 2007 server. The migration process went well and all seemed to work correctly.
However this morning when I got into the office that user stopped receiving email's to their onsite account. Upon investigation their default SMTP address was user@domain.onmicrosoft.com. It had gotten this from an email address policy that I can't find.
If I uncheck the "Don't use this policy button" it goes back to using the default user@domain.com address. However emails are still being received by the server and routed but never delivered. When I check the mail flow on the Exchange Online portion the emails they should be getting at the on-premise address are still being ported to Exchange Online system.
Hopefully that was at least coherent.
I am a bit perplexed by this because I can't seem to find any routing settings setup in Exchange for this user. Nor can I find them in OWA or Outlook 2010.
Any ideas?
Edit: This apparently happened to my account as well. However I didn't notice it since I moved exclusively over to the Exchange Online environment.