[SURBL-Discuss] important reduce wrise renkles & skin spots ( fwd)

Jeff Chan jeffc at surbl.org
Wed Sep 15 23:06:23 CEST 2004


On Wednesday, September 15, 2004, 5:36:51 AM, Anti-Spam Anti-Spam wrote:
> From: "Jeff Chan" <jeffc at surbl.org>

>> On Wednesday, September 15, 2004, 12:46:00 AM, Alex Broens wrote:
>> > Jeff Chan wrote:

>> >> What is your expiration algorithm?
>>
>> > None so far. As its all very new, I'm still "collecting".
>> > On my local IP RBL I have 30 days, dunno yet what to use on URIs, I
>> > assume that using 6 months at least would be  safe.
>>
>> 6 months sounds reasonable to me.  3 months could work also.
>>
>> The way the sc data works is that it's refreshed by new reports
>> or the records fall off the list after some number of days.  In
>> other words it's report-driven.

> which makes sense when autromatically listing IPs as a zombie may be fixed
> real fast.

Not sure how that's relevant since we're doing URI domains, not
zombie IPs.  IOW we're doing destination URIs, not source IPs.

To me they're not too connected.  The hosting of the URI and
the sending of spam are relatively de-coupled (not connected).

> my thought is that as domains are usually paid for a year or more,  their
> owners have to get their ROI together, so keep them in there for at least as
> long as the dom is paid for...:)

Most hard core spammers use a domain for a couple days then
abandon it.  These spammers don't use their domains a year;
they treat them as disposable.

Jeff C.



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