We are having a strange issue. Just finished migrating mailboxes from on-prem ex2007 to o365.
Outlook 2013 clients can get to the migrated mailboxes just fine. The problem is with outlook 2007 (running on win 7). If i want to iuse the same mailbox on a win 7 computer running 2013 i get no issues
I add the new provide via the mail cpl.
Outlook thinks for a minute, asks for the credentials and finally shows "congratulations" with 3 green check marks (see attached outlook2007 congrats)
It would seem all is good.
then i open outlook, choose the new profile and get a " The connection to MS Exchange is unavialable. Outlook must be online or connected to complete this action."
When i hit OK i get a a Microsoft exchange windows pop up with the server address with a @domainname.com at the end and the proper user name in the mailbox field (see attached outlook2007_1.jpg)
when i hit "check name" i get " "the name cannot be resolved"
If i just hit OK i get " Caqnnot open your email folders. The server is unaviaqlable"
Like i mentioned this works just fine from this computer using webmail OR another computer running 2013
thanks in advance