Good point MHC. Even if I don't use the email address for general use. But if I set up a new BTYahoo account in Thunderbird, any mail from them will be downloaded with my normal Yahoo mail. And as XrayspeX says, I will not need to inform all my contacts about the change of address.
You're getting there, slowly
Assuming MHC is right that you have to read the BT Yahoo emails to check for important stuff from them, (I've queried this with him as that sounds very unusual, but he is rarely wrong), as long as you don't tell that address to anyone else then all will be unchanged from now, except for adding a new account in Thunderbird.
Your existing Yahoo (and gmail) account(s) in Thunderbird would just run as now except you have to go into the SMTP server setting I described earlier and edit the port to 587.
That I assume is correct for Yahoo, as he gave it. I expect it will also be correct for gmail, but you need to check that out.
Earlier, you seemed to have decided webmail for the lot was the way you wanted to go. As I said, I would find that very cumbersome.
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