I am in the process of moving mailboxes from our old server which is exchange 2010 to our new server which is 2016.
I tested it out with one mailbox first. I created an outlook account on a offsite computer. I then moved the 1 mailbox and tested outlook after the move. Works fine.
I moved our first batch of 10 users tonight. Outlook will not connect to at least one user. I tried creating a new outlook profile for this one user but I get a message saying an encrypted connection cannot be made to the server. The original user I moved as a test is still working fine. OWA works fine for the user that I cannot get to work in outlook. How can one user work fine and one not ?