Okay, I spent a couple of hours trying to get Thunderbird. I downloaded it and got the set-up started. But somehow, it got hold of the info for the very old AT&T account. I've been going through, trying to delete all references to prior accounts, but it hasn't worked, so far.

It would be easier if I knew how computers 'think', but for me, it's on the same level as flying by flapping my arms.

Sue