[SPAM-TAG] Re: [SURBL-Discuss] A list of spammers urls

Jeff Chan jeffc at surbl.org
Fri Mar 11 16:42:37 CET 2005

On Friday, March 11, 2005, 7:32:18 AM, Chris Edwards wrote:
> On Fri, 11 Mar 2005, Jeff Chan wrote:

> | On Friday, March 11, 2005, 4:33:45 AM, Chris Edwards wrote:
| >> Jeff Chan wrote:
> |
| >> I wonder if there'd be much mileage in a SpamAssaassin feature to award
| >> points for any URLs that don't resolve ?
> |
> | In principle it's something that could be done, but the timeouts
> | encountered trying to resolve non-existent domains could make it
> | impractical.

> Ah yes.

> Then again, if, in theory, one was to only query the relevant gtld server
> for the registered toplevel NS records, the answer (positive or negative)
> should be quick.

Point taken, but we also don't want to dDoS the root name servers
if spammers decide to load up their spams with fake domains.
Since there is so much spam, dealing with it needs to be kept
pretty efficient.

Jeff C.
"If it appears in hams, then don't list it."

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