Re: CBL Composite Blocking List problem

Hi Darryl,

I don't know if they're blocking other Challenge Request anti-spam
solutions. 

The issue in question is ASK's SMTP verification of the sender. ASK will
connect back to the MX record of the sender and attempt a "HELO" command,
followed by a MAIL FROM and RCPT TO, to verify if the sender exists (the
explanation is simplified, there's more intelligence to it).  At no moment,
a spam is delivered or the recipient gets to know about it. CBL's admins are
getting paranoid because they see a HELO recipient_domain.com, instead of
the sender's domain! I really don't understand why all the paranoia in this
case...

Regards,
Paga

On Fri, Apr 08, 2005 at 03:41:23PM -0500, Darryl Caldwell wrote:
> Are they blocking earthlink.net users too? Or is it just something in
> the way that ASK issues CR validation?
> 
> 
> 
> On Fri, Apr 08, 2005 at 03:04:10PM -0400, Marco Paganini wrote:
> > 
> > I still believe this is a silly reason to blacklist an IP, specially because
> > no harm is being done!  What's the harm in using HELO foobar.com or any other
> > argument when the MTA reverses (and logs) the IP anyway? I don't understand
> > why this is causing such a fuss.
> > 
> > My biggest concern is the nature of the complaint: I have to change something
> > in the program because someone out there (in a position of power), dislikes
> > its current behavior, even though no harm is being done. The point here is
> > that there will always be someone who dislikes one thing or another... And
> > then, where and when will we stop?
> > 
> > In any case, I will implement changes to eliminate ASK's current "disruptive"
> > behavior. It just happens that, at this moment, I'm swamped by other things
> > to do, and trying to get the latest beta out.
> > 
> 
> 
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-- 
Marco Paganini          | UNIX / Linux / Networking
[email protected]   | PGP: http://www.paganini.net/pgp/
http://www.paganini.net | Magnus Frater te spectat...


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