Hi @GaryQ
Welcome to the community forums
Sorry to hear you're having issues with sending ntlworld emails from your iPad.
Has the troubleshooting steps that @Dinger has kindly posted helped resolve your issue?
If so, If you believe the issue to be resolved you can mark the thread as resolved by clicking the helpful answer given and this will show anyone else having issue that an answer was given and direct them to the post, alternatively you can just like or 'kudos' the post if it helped you.
Please let us know if you are having any further issues or have any questions at all. We'll be here to help on the community forums if needed :).