If you fail to log in 3 times in a row, you are sure that your username and password are correct, then you should stop logging in and contact customer service.
Ask them if there is a problem with their server or with your account. Remember not to keep trying after several failures, this may cause your account to be closed or cancelled.

I can’t log in to my email | BT Help

Here are some answers to help you. Need help logging in to your BT Email? Read our useful advice on how to login to your BT email account if you’re having trouble. Help with BT usernames and passwords. Get help with your password or username if you’re having trouble logging into a BT service.

Solved: Cannot log in to BT Email – BT Community

 · Cannot log in to BT Email. Go to solution. I enter my email address and password and the same screen appears again asking for the same details. I tried changing my password and this worked until the next time I tried to check my emails. I have tried to login on two separate computers using Edge and Chrome with the same result.

Need help logging in to your BT Email? | BT Help

You can view your email from the menu bar at www.bt.com by selecting either: The email link and logging in with your email address (ending @btinternet.com, @btopenworld.com or @talk21.com) and password; The My BT link and logging in with your BT ID and password (depending on how you’ve set things up, this might be different from your email address and password)

Solved: Cannot log in to BT Email – Page 5 – BT Community

 · Re: Cannot log in to BT EmailGo to solution. Hi All, We are very sorry for the issues you faced, we identified an issue with our webmail servers and have fixed it today. This incident was isolated to certain Customers who used the ‘Keep me Signed’ in feature on BT Mail. We are putting in measures to prevent this from happening again.