|A BT Internet address can only be used with BT Internet., If you have closed your BT Internet account then the Email address has gone with it. Whenever someone sends you an Email to your BT Interent address it will go to the BT servers. There is nothing you can do about that. BT are unlikely to reconfigure their mail servers just to accommodate a single customer.|
If you are still using BT Internet and the Enail address is still "live" then you may be able to configure Windows Live to pick up mail from the BT mail servers. Some mail servers will allow you do this but I am not familiar with Windows Live. Check the Help files.
BT certainly allows you to pick up mail from a foreign server like Gmail, or MSN but you have to register the address first.
Recently Email providers have been getting tougher with foreign Email address on their server because it is a vehicle for spammers.