I am set up with my AOL mail account on my iPhone 4S and I receive and send mail fine. But I noticed that, after I read an email on my phone, it doesn't show on my computer. So I figured the incoming mail was set for POP instead of IMAP. I went looking for a way to change the incoming mail server and the only thing I find is settings for outgoing mail (which is set for SMTP).
How can I change my incoming mail setting to imap.aol.com so it stays on the AOL server even after I read it on my iPhone?