I mean, don't go into settings and click Mail and select one of the pre-loaded configs such as Yahoo, Gmail, AOL, etc.
And it doesn't matter where you are, if IMAP configs are available for your account ( Like Gmail and Yahoo) then you can use those instead of POP.
https://mail.google.com/support/bin/...y?answer=77702
AND, if you don't have a google or Yahoo account and want to keep whatever mail setup you currectly have, you can get a google or yahoo account, configure it to pull your pop mail and dump it into a specific folder, and then configure the google or yahoo account IMAP on your iPhone and you can still get your email.