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Re: [Fwd: Re: Spamassasin over RBL, was Re: rblsmtpd -t?]

On Tue, 7 May 2002 19:48, Jason Lim wrote:
> And I also believe in it, because it is very possible that one of the
> tests to determine if it is an open-relay is braindead... what if I made a
> mail server that pretends it will relay email, but in fact does not, and
> actually records the IP that tried to abuse the open relay and reports it
> to the admins (i consider that very whitehat)? My point is that the test
> is not foolproof either... unlike your "everything is black and white"
> stance.

If you can send a cryptographically signed message is to a mail server 
outside your network and addressed to a machine in your network, if you 
receive it at it's destination and the crypto sign matches then you know it's 
an open relay.

> This word is not "black or white"... if only it were.

Open relay tests are very "black or white".

If you send email to me or to a mailing list that I use which has >4 lines
of legalistic junk at the end then you are specifically authorizing me to do
whatever I wish with the message and all other messages from your domain, by
posting the message you agree that your long legalistic sig is void.

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