Re: [Asrg] What are the IPs that sends mail for a domain?

Dotzero <dotzero@gmail.com> Wed, 17 June 2009 17:59 UTC

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Date: Wed, 17 Jun 2009 13:59:53 -0400
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From: Dotzero <dotzero@gmail.com>
To: Anti-Spam Research Group - IRTF <asrg@irtf.org>
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Subject: Re: [Asrg] What are the IPs that sends mail for a domain?
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On Wed, Jun 17, 2009 at 1:52 PM, J.D. Falk<jdfalk-lists@cybernothing.org> wrote:
> Dotzero wrote:
>
>> One approach that might help you is to go to senderscore.org (from
>> ReturnPath). Register for a free account and then enter in the domain
>> name. For example, when I enter in avonsys.com it shows me that there
>> is one IP address sending mail for that domain - 76.203.192.33 with a
>> hostname of adsl-76-203-192-33.dsl.rcsntx.sbcglobal.net.
>
> That list is based on what we've observed recently in our data network,
> collating delivery logs from a whole bunch of ISPs and other sources.  Since
> it's aggregating multiple views, we tend to see more than a single site
> would.
>
> (You can look up some data without registering, but not all.  Either way,
> it's still free.)
>

The reason I said to register is that the information available to
non-registered users would not have helped answer the question he
posed.