Dear developer, please consider to introduce a sort of welcome popup in the new email account wizard with a simple question:
Do you want to configure manually or automagically the new email account?
New email account wizard current behaviour is something like here we go, there's an imap server and I don't care if you're trying to configure a POP3 account.
Besides, if you try to stop the automagic-searching for email servers or you hit the manual configuration button, the directory path is set in the imap directory already.
Of course, you can edit that later and change everything in command line or in a file manager but that's a PITA.
Regards