[TriLUG] Another seal broken... thinking of installing a C/R anti-spam system

[Daniel Sterling]

Jon Carnes wrote:
> You wouldn't have to check the authentication of every message passing
> through, but you could if you wanted to. Ideally though, you would just
> check the ones that seem suspicious.

Well, if you're talking about issues of trust, GPG does this already, now.

If you like, you can only accept properly signed email, and you can go 
further and only accept properly signed email from people you trust. 
However, again, for this to work to stop all spam, everybody would have 
to adopt it, and keys used by spammers would have to be blacklisted.

-- Dan