Hi @Gaz1963 ,
I would love to help you get this sorted by providing you a few troubleshooting steps that you can try:
1. Reboot your phone and make sure your device is up to date with the latest software by heading into the phone Settings> Software update> Download and install.
2. Head into Settings > Apps > 3 dots (top right) > Show System Apps > Email > Storage > Clear cache and then Clear data.
3. When adding the account onto your device again, select manual set up and select IMAP as the type of account, instead of POP3. Sign into your email account on a PC / MAC or an internet browser to confirm that your account has not been disabled and that you are using the right credentials.
If 2-step verification was enabled for your account you may need to create an app specific password for accessing your email account on the Email app. If the IMAP protocol was disabled, you will need to login on a web browser and enable this function.
