On Wed, 7 Oct 2009, Terry Carmen wrote:
John Hardin wrote:
On Wed, 7 Oct 2009, Terry Carmen wrote:
> Instead of blacklisting new domains (which is apparently difficult to
> do), why not blacklist all .cn domains (or simply all domains) newer
> than xxx days?
>
> If they're older than xxx days and not yet on another blacklist for
> sending actual spam, return a neutral response.
How does that simplify the problem? The difficulty is in getting data
about when a domain was created.
I thought the problem was in getting data for recently created domains, not
all domains.
If it's a problem with all domains, this won't help at all.
The other part of the problem is determining the age of a domain. The only
way to do that absent a registrar feed is to do a whois query, which may
or may not return the data you need, and which is considered abusive when
automated and done often.
--
John Hardin KA7OHZ http://www.impsec.org/~jhardin/
jhar...@impsec.org FALaholic #11174 pgpk -a jhar...@impsec.org
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