On Tue, 28 Feb 2006, Hannah Schroeter wrote:
However, what spammers are really doing is adding SPF records to their
own throwaway domains. This in itself show that spammers are feeling
the pressure. It then requires yet another layer of complexity to track
reputation of domains once the forgeries are eliminated.
If you track reputation of domains, you still have the open decision how
to handle domains which have no data yet. I.e. how to detect and handle
spammers who register *new* domains for each spam run.
One solution is an additional cost for initially registering a domain. Raising
the renewal cost will harm small businesses (like mine). However, having to
pay, say $100 for the initial registration, but then paying only the usual $8 -
$30 per year for renewals would make the throwaway domain tactic much more
expensive for spammers. And even a small business won't have a problem with a
modest one-time cost increase. Ideally, a registrar could subsidize renewals
down to say $5 per year with the increased initial registration cost.
The disincentive would be that registrars want to get more customers,
and a higher registration cost discourages that.
--
Stuart D. Gathman <stuart(_at_)bmsi(_dot_)com>
Business Management Systems Inc. Phone: 703 591-0911 Fax: 703 591-6154
"Confutatis maledictis, flammis acribus addictis" - background song for
a Microsoft sponsored "Where do you want to go from here?" commercial.
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