pst files or accounts when they think something is wrong with Outlook. Too many people are in the habit of deleting IMAP.

Categories and Flags will not work 'as expected' on items in the IMAP folders. The problem with the way Outlook 2013 handles Calendar, Contacts, Tasks, and Notes goes beyond which calendar the meeting requests are added to.

pst files in a profile that had only an IMAP account. Microsoft was thinking about all of the people who complained about needing two. I want to define a 'default calendar' and have ALL appointments go there, regardless of the email account they arrived in, and that now seems impossible. I want all appointments added to the calendar in my default. Incoming meetings are placed into the 'This computer only' calendar.