I have just set up my TPG email and a new device and an error comes up saying "we couldnt access the account: firstname.lastname@example.org. you might need to update your password or give the account permission to sync to this account.
I have tried to do this but still it does not work on the new device. I have recieved the test email on the old device.
Hope you can assist.
As you havent stated what device or email program you are having difficulty with I have included some setup guides for you below.
Please follow the links below for guides on how to setup email for your device.
Setting Up TPG Email for Microsoft Outlook
Hopefully this helps.