[NTLUG:Discuss] How does MAPS RBL work?

[Neil Aggarwal]

Chris:

> I did some digging.
> First, they offer two types of server, as I kinda said in my 
> original reply. one
> is query, the other is zone transfer.

I am more interested in offering the direct query approach.

> Their query option is just that, a direct query.
> You make a good point about your primary DNS server doing the 
> query of the
> authoritative DNS server on behalf of the client and 
> returning the results.
> However, the contract that MAPS has you complete only asks 
> for your mail server
> IP address. This tells me that your IP address must ride on the UDP
> communication for DNS queres.
> That fact of the matter is that the IP address of the mail 
> server must be
> getting to the MAPS dns server so they can verify 
> authenticity. There is no
> documentation that tells you that you must change the primary 
> DNS server of your
> mail server to their server. I can't believe they would have 
> you do this anyway,
> because they have 5+ DNS servers running across the world for 
> disaster recovery.
> This would make a painful maintenance effort.

This is exactly the question:  How do they force the mailserver
to make a direct query to their DNS servers?

> Here are some links for ya.
> http://mail-abuse.org/feestructure.html
> http://mail-abuse.org/rbl/usage.html

I appreciate your efforts, but I read thru those before
posting this thread.  They don't answer the question at hand.

Thanks,
	Neil.


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Neil Aggarwal, JAMM Consulting, (972)612-6056, www.JAMMConsulting.com
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