Setting up forwarding to Btinternet email allows incoming messages to be automatically forwarded to another email address. This can be useful if you want to receive all your emails in one place. However, it is important to ensure that forwarding is set up correctly and is not being used for malicious purposes.
There is only one major cause of the "Set Forwarding to Btinternet Email" issue, and that is when the user sets up forwarding rules to forward incoming emails to their BT email account but faces difficulty in receiving forwarded emails. This could be due to misconfiguration or issues with the forwarding service.
Make sure to choose a strong password and never share it with anyone to ensure that only authorized users have access to your account.