One of my user's iMac running on OSX 10.8.5 using Outlook 2011 suddenly cannot connect to our Exchange Server 2013. This is a very unique problem which I tried but cannot solve.
There are 7 email accounts on this iMac but only this one account cannot connect. I can create this email account on a computer using Windows 7 Pro with Outlook 2010 and it works fine.
What I have tried but did not work;
- rebuilt the Database
- migrated the mailbox to another database
- create another user identity on the iMac
- run permission repair on iMac
Any suggestions or solutions will be greatly appreciated. Thank you.