iOS: Unable to send or receive email
Can’t Send Emails on iPad – Troubleshooting Steps
Try this: Delete the account in Mail and then set it up again.
15/11/2015? What calendar are you using?
Stuart Hodgson wrote:
Thanks, after some more research and time trying various settings and deleting and re-setting email accounts all now seems ok. Also the problem was apparent when using a free wifi hotspot and this may have been part of the problem. Thanks anyway for your input.
probably because the SMTP settings in your iPhone were not compatible with
that particular wifi carrier's