I have a Microsoft Exchange account configured in Outlook 2010. I'll be getting multiple pop ups saying that "Outlook is retrieving data from the Microsoft Exchange Server" in tray.
Mails won't move or will move slowly to local PST, and Outlook crashes fairly often.
Best Answer
According to Microsoft Support, this is a known issue when upgrading from Outlook 2007 or earlier to Outlook 2010 or 2013.
Resolve the issue by installing update 2825677 (Outlook 2013) or 2598374 (Outlook 2010)