Adding BT internet mail account to my iPad Pro

Start with initial fault finding:

• If you can't receive email on your iPhone, iPad, or iPod touch - Apple Support
• If you can’t send email on your iPhone, iPad, or iPod touch - Apple Support

What happens when you try to receive or send email? Do you see any errors - and if so, what do you see?

If email is failing to send or receive, you are likely to see indicative errors at the bottom of the mail sidebar - the wording of the error usually providing sufficient information to determine the nature of the problem.

Deleting and re-adding your email account is sometimes the easiest way to resolve a problem with a specific Mail account. After deleting the account, perform a forced restart before re-adding the email account to your iPad.

• Delete account:

Settings > Mail > Accounts > [Your Mail Account] > Delete Account

• Force restart the iPad:

Force restart iPad - Apple Support

• Add Mail Account:

Settings > Mail > Add Account

Do you have any security Apps (such as Norton) or VPN installed on your iPad? If so, these may be interfering with your iPad's IP-routing. If either are installed on your iPad, it may be necessary to temporarily remove such Apps from your iPad - and then perform a forced-restart of your iPad.