Mail issues since upgrading to 4S iPhone

I've got the same issue.  For some reason, when I enter my email address, it validates/verifies it as an IMAP, when it really is a POP3.  I also want it to stay on the server, so when I open email on my laptop, I get the mail in Outlook.

I have found a way to work around the issue.  If  I go to add a new account, select Other as the type and then add 1 extra letter to domain (example: aatt.net) I can then access the option to create a POP account.  I have to manually configure all the settings.  I do make sure to select the "never" option for removing emails. At the end, I go back and remove the additional letter from the domain and everything will work correctly. 

I spoke to my carrier, Apple and my email provider and none could really tell me why the domain was automatically configuring as an IMAP, but glad I found the work around.

Coming from a Blackberry this was really frustrating.  On my BB, it prompted me how I wanted to delete the message and I never lost anything I needed.  Not saying I don't like the Iphone, just wish this didn't take all day to figure out.

I know this is a late response, but hopefully it will help others who are using the suite of ATT.NET domains.