OT: MailMan spam protection (was Re: [ILUG] hey hun )

[Rick Moen]

Quoting Justin Mason (jm at jmason.org):

> There is another alternative, which I hacked up for the IIU list
> using a perl "condom" [1] around the list addr.  Instead of requiring
> list mgr approval, it replies to an unsubscribed sender asking for
> confirmation with a "magic keyword", and once the confirm comes in,
> allows the mail through.   Less work for the moderator...
> 
>   http://jmason.org/software/scripts/mailman-block-non-members.txt

Pretty neat.  That would halt drive-by list-spammings of the fully
automated variety, unless and until it became widely enough adopted that 
the bad guys auto-parsed that magic token to get approval
illegitimately.