The Mail account (incoming imap, outgoing smtp) works fine for a few days then just stops receiving/sending. Promptly delete mail account on iPhone (5) and recreate mail account - working again immediately for maybe a day or two then happens again. Is this an iPhone issue or the email provider ( ntlworld in the uk) or the phone service provider ( O2 in the uk). It's driving my girlfriend crazy and I get the flak. Any help appreciated.