[Asrg] Re: Asrg Digest, DNSBL BCP v.2.0

[Al Iverson]

On 3/3/07, Bill Cole <asrg3 at billmail.scconsult.com> wrote:
> At 1:07 PM -0600 3/3/07, Al Iverson wrote:
>
> >With a blacklisting, I get a bounce back and can find somebody to
> >argue with. With the common method of implementing a content filter,
> >my mail is quietly eaten and I get no information back regarding the
> >failure to deliver the mail to end recipient. This is worse than IP
> >blacklisting; less transparent; less obvious; less opportunity for
> >feedback and investigative recourse.
>
> That's not an uncommon way of deploying content filters, but it is a
> diminishing model.

Do you have any data to support that it's a diminishing model, or on
what % of spam is content rejected with a bounce?

I agree that some work this way (and I like the change), but I look at
many thousands of bounces a day, and it's still exceedingly rare.

There area a lot of Barracuda-like things in the world, who accept the
mail before doing anything else, and their only chance to send a
bounce (in how they're implemented currently), is after the fact,
which has its own obvious set of problems.

Regards,
Al Iverson

-- 
Al Iverson on Spam and Deliverabilty, see http://www.aliverson.com
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