I have started migration from exchange 2010 to 2013. The 2013 server is up and running and I have tried to migrate two users just to see if things is working. The user migration ended successfully and both users can access their mail fra 2013 OWA and from Outlook as well, but none of then can send or receive email neither between the two 2013 users or the other 2010 users or the outside. If I try to send mail from their account, the mail goes to the sent folder, but is not delivered.
Why can't they send/receive mails, what do I miss??
Jørgen Olesen