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Re: [spf-discuss] Mail Forwarding Question

2006-03-06 11:24:12
Hi!

On Tue, Feb 28, 2006 at 12:37:30PM -0500, Stuart D. Gathman wrote:
On Tue, 28 Feb 2006, Hannah Schroeter wrote:

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.

Another thing is that that discriminates against private and
other non-commercial domain registrants.

And it works only if the gains/profits from the spam runs (i.e. the
time window until the domain earns enough bad reputation so it's no
longer useful for the spammer) are lower than the additional
registration cost.

Kind regards,

Hannah.

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