Seems many of us have the same problem. I need to designate a Microsoft
exchange email account as default for mail delivery. As I understand this is
the only way mail can be kept on the exchange server so that it can be seen
from multiple locations.
I then have a rule for my other email accounts that directs email from those
accounts to a personal .pst folder.

Problem : I have both a personal calendar and a calendar for Microsoft
exchange. It appears, however, that I cannot get reminders to work on the
personal calendar unless I switch mail delivery to personal folder. Is there
a way around this?
Is there a way I can chose which calendar can be designated Main?

Thanks