Setting up a domain for an old friend, who isn't very computer literate.
He likes to use the BT webmail service and has a couple of addresses @btinternet.com
Its trivial - and I have done it already - to redirect mail to @hisdomain.com to these addresses, but is it in anyway possible to SEND with the return/Rely/From address as @hisdomain.com using BT webmail?
The idea is to achieve independence from BT over the course of a year in case he can be persuaded to dump them...