I have a user that works for a subsidiary of our company. He is not on our Exchange server, but uses a Business Mail account through 1and1. The account uses POP3/IMAP, unfortunately.

Now, his Outlook has two Profiles created for the same address. One is for in the office, using our Exchange server for outgoing messages. The other is the same account, but for being out of the office using 1and1's SMTP server. Apparently, there was some issues sending messages through 1and1's outgoing server from within our network.

The problem he is having is that he as a second Calendar showing, called Calendar - This Computer Only. Any meeting requests he accepts go here, and not his "online" Calendar. He can drag them over to Calendar, and they will sync to his phone, but is there a way to change the default Calendar without having to create/specify a .pst file?