Re: automated spam detection

[Lars Marowsky-Br�e <]

On 1999-02-17T18:25:11,
   Ragnar Lonn prl@localhost said:

> No I know. But you can configure your filter to accept e.g. mail
> that has "" *and* that was received from
> "postman.ripe.net". That would at least make it slightly more difficult
> for a spammer to fake that they are a mailing list.

Doesn't work with mail relayed to you from other hosts, for which there are
too many reasons to mention.

> It shouldn't be too hard to associate most list servers
> with a single SMTP server that delivers the messages to the list
> members.

Please excuse me while I go hide under my desk.

> Also, one could lobby listserver-programmers to implement digital
> signatures in outgoing mailing list messages so it'd be easy to
> confirm that a certain mailing list server actually originated a
> certain message.

That might actually work, just accept signed email. Of course, you have to
always know who sents you mail beforehand so you can add their key, and since
they can't send you mail yet, you will have to exchange keys via some other
media.

Welcome to the real world ;-)

Sincerely,
    Lars Marowsky-Brie
	
--
Lars Marowsky-Brie
Network Management

teuto.net Netzdienste GmbH - DPN Verbund-Partner