Hi, I am Using OSX Mavericks with Office 2011 Version 14.3.9 (latest available version on 2014-04-04) using a Office 365 License.

First, I have set up an additional Online Exchange account at Microsoft and configured as Exchange mail in Outlook 2011.

Secondly, I wanted to use my separate Outlook.com mail account in Outlook 2011. This one I have configured as IMAP (...Exchange EAS does not work ;-( ) in Outlook 2011.

This combination was running fine for about 6 weeks on my iMAC and my MAcAir, both running Mavericks. Two days ago, both computers showing the same strange problem: Each time Outlook 2011 syncs with Outlook.com via IMAP, Outlook 2011 crashes...spinning wheel...with force close as only option to close the application.

I tried already a few things:

1) After deketing the Outlook.com IMAP mail account from Outlook 2011, everything is running fine, no crash, no spinning wheel..

2) Configuring another IMAP mail account (not using Outlook.com) runs fine, no crash

3) Configuring Outlook.com as POP3 account has no problems, no crash...

4) Re-implementing the Outlook.com IMAP acoount results in same crash, spinning wheel situation....

5) complete deletion of Office 2011 APPs and re-installation does not help, Outlook 2011 crashes when Outlook.com IMAP mail account configured.

Any ideas or help is definetly appreciated...!!

regards, mayodd