The number of issues I have had with BT emails are of biblical proportions. My latest one is today, 11th January 2022. Every other website on my PC opens quickly and quite normally. BT emails do not. It takes literally 4 minutes to log in. Then, to read an email and reply takes a further2 minutes. When conducting personal business this is extremely inconvenient and inefficient. I have shut down the computer and rebooted it. I have rebooted the Broadband (although this does not appear to be the problem). It's still exactly the same.
My problems with BT emails reached such a point that I contacted the CEO of BT directly. Obviously this is not his pay-scale but he did inform the BT email team. They contacted me and are supposed to be resolving the problems, et al. However, this is a new one today.
I have just contacted the BT Help line which was less than useless. Anyone any ideas?
Have you tried clearing the history and cookies from your browser. If the browser allows it, make sure you clear it "From all time".
For information, there appeared to have been a problem logging onto the BTMail service this morning that has now been resolved.
Rather than using a web browser to access your emails have you considered using the correct tool for the job, ie an email client/app.
You can get free email clients/apps for for laptops and mobile devices. BT actually make for BTMail and it can be found on the Apple store and the Google play store.
You could also use the email client BlueMail or Thunderbird.
If you choose to use an email client/app you do not need to access your email on a web browser and you will in my opinion find it a faster and better user experience than using a web browser.
If you do decide to use an email app the settings that you may need to set it up are here.
If you set the email client/app up as an IMAP account it will synchronise across all your devices. ie. if you delete an email on one device it will be deleted automatically on all your other devices.