ietf-asrg
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Re: [Asrg] Certs required to send mail

2003-03-26 11:50:47
Tarpits are an interesting idea, but of course they have a risk.  As we
know all spam detectors have false positives, and we must be very sure
we don't tarpit a legitimate mailer.   In one case, when we at the EFF sent
out our newsletter including some notes about spam, SpamAssassin tagged it
as spam.  This would have put us in a tarpit if it used similar algorithms
to SpamAssassin.

However, this can work if you can make an easy system for legitimate mailing
lists to whitelist themselves to be immune from any tarpitting.   I would
recommend a wide variety of means of whitelisting, ranging from the basic
of getting your IP on a list, to certificates, to magic-tags etc.

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