A thought on that certain ISP...
A friend of mine locally was using Madasafish, and has recently switched to broadband.
She discovered that she can't collect her Madasafish mail via her broadband connection - she has to access it via their dial-up. She sent everyone in her address book a message with the new address, asking them to drop the old one.
A week later, the only thing in the Madasafish mailbox was a large crop of spam. So she's just left it. Serves Madasafish and the spammers right