I'd prefer a PGP signed message, but I know that the people who use S/MIME would probably object.

It doesn't matter what the email is signed with I'd still go to the site to confirm

It would be too easy to get many people to pull an entry from a filter with a forged message and have the space used "improperly".

There's easier space to steal though they may like the challenge of doing it in your face. Better to trust that Rob Thomas has done due diligence than rely on email a virus may have generated (signed or not) brandon