For years, POP (Post Office Protocol) email has been a thorn in my side. Apple's email service uses the IMAP (Internet Message Access Protocol) protocol for email, as do many other email services.

Q: I've been using a POP (Post Office Protocol) account to access my Comcast e-mail; it deletes old mail from the server once I download it to my PC's Outlook mail program. Now I want to switch to an ...