Re: anti-spam trick for debian ml (was Re: News about the Package Tracking System)
> But for mailing lists it would be annoying to have to add an
> extra-header each time you want to write to the list. And there are
> people who don't use mutt or gnus and can't easily add arbitrary
> headers. I really think that this auto-approval thingie is just a
> temporary measure until we do something better.
How about keeping a whitelist database in which the users can add themselves
by sending a mail in certain format to something like
"firstname.lastname@example.org"? Only after that would mail from that address be
accepted without bouncing. That should filter out most of the spam.