Many people are running Exchange Online and Office 365 running with Synced usernames and password from the On-Premise Active Directory, it works well most of the time but we discovered a problem when we had to rename a user, although they were renamed in our AD and the 0365 Portal…

After spending days finding a fix for Outlook 2010 – (Post here) I found some Outlook 2007 clients that were throwing the same error The KB Number is – KB2596993 downloads can be found here KB2596993 Also check out my previous post about delegated mailboxes, you may find the two issues are…