Hope some one can help. I can't set up BT mail using the Mail client on my MacBook Air. When I enter my details it says "unable to verify account name or password" .I use the same details on my IPhone and have no issue using the mail app. Any ideas, I have tried a few things but no joy.
As the problem is specific to your MacBook Air, you will probably get better advice on an Apple forum.
Are you Are you presently a BT Broadband customer or are you paying for your email through a BT Premium email account or did you migrate to EE Broadband?
If none of the above your email account may have been downgraded to a BTMail Basic account which can not be used with an email client or email apps.
See link
https://www.bt.com/help/email/bt-email-products
If this does apply you will find that your BTMail that you use with an app on other devices will also stop when BT catch up.
I am A BT broadband customer.