Well, they use different protocols and ports.. and IMAP is a server based
mail store, similar to HTTP (Hotmail/MSN). Many servers support both types
of access.
These don't get into the nitty-gritty, but it may be enough to satisfy most
people's curiosity...
http://www.webopedia.com/TERM/I/IMAP.html
http://www.webopedia.com/TERM/P/POP2.html
--
Diane Poremsky [MVP - Outlook]
Author, Teach Yourself Outlook 2003 in 24 Hours
Coauthor, OneNote 2003 for Windows (Visual QuickStart Guide)
Author, Google and Other Search Engines (Visual QuickStart Guide)
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