Roy RainfordAm using an iPhone SE version iOS 12.1.2 but I can't send emails. Message says: "The sender address, rrain....................was rejected by the server".
My mobile Network and Carrier is TalkMobile so spoke to them first. After checking, they said it was an Apple issue for the phone. Had an in-depth discussion with Apple Support who took over my mobile screen. He checked the settings and was surprised it was a POP account, not IMAP. Was impressed by his detailed checks and time spent on the call, with a clear voice! However in the end he said it was a TalkTalk issue!!! He suggested I should change to an IMAP account. Spoke to TalkTalk who said they currently have a problem with iOS Mail and are working on it!
Wondering if anyone else is having a similar problem?