I've just bought a Thinkpad from Lenovo via their website. They're doing the same infuriating thing.

    > Dear ****,
    > Thank you for contacting us on Lenovo Outlet.
    > The password you requested is: ******
    > Please note: This e-mail message was sent from a
    > notification-only address that cannot accept
    > incoming e-mail. Please do not reply to this message.
    > Sincerely,
    > Customer Service

Tesco can live without geek business. You'd think a company like this would care though. They send it in plaintext when you sign up too.