I have the same issue here and set up a new account. When I click on other to open the new account I have no option anywhere to select pop or imap I just get 4 boxes to complete and the account is then set up automatically as pop? I ideally want IMAP but at a loss how to do this on ipad/iPhone.
The account I have re set so far just show inbox and none of my sent folder has been brought across
I have probably re set new accounts numerous times and always ended with a pop. This time I gave in the fourth box when clicking other a new name for the account and it worked! All set up now as IMAP and folders have come through and I once again can send emails.