Re: [Asrg] MTX, a distributed DNS whitelist requiring IP and domain ownership
Alessandro Vesely <vesely@tana.it> Wed, 17 February 2010 08:29 UTC
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Date: Wed, 17 Feb 2010 09:31:03 +0100
From: Alessandro Vesely <vesely@tana.it>
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Subject: Re: [Asrg] MTX, a distributed DNS whitelist requiring IP and domain ownership
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On 15/Feb/10 19:38, Darxus@ChaosReigns.com wrote: > Basically the entire thing is: > > 1) Receive an email from IP. > 2) Get host name from PTR record value for IP. /Any/ PTR, or should one test all of them? How about virtual servers? > 3) Get value of A record named IPReversed.mtx.HostName. > 4) If the value is 127.*.*.1: Pass. Otherwise: Fail. > > Blacklisting, of course, is required. I believe maintaining a blacklist > of (non-throwaway) spammer domains using MTX (against the sending IP's > PTR record), and possibly IP's which spam with MTX, will be significantly > easier than maintaining current IP blacklists. Why wouldn't spammers change domain as often as they wish? They already register all the throwaway domains they like... I cannot see why MTX would slow them down. > I believe the more this is adopted, the more spammers will be required to > own the transmitting IP *and* a throwaway domain. Non-spammers will be required too, of course :-/
- Re: [Asrg] MTX, a distributed DNS whitelist requi… Rich Kulawiec
- [Asrg] MTX, a distributed DNS whitelist requiring… Darxus
- Re: [Asrg] MTX, a distributed DNS whitelist requi… Franck Martin
- Re: [Asrg] MTX, a distributed DNS whitelist requi… SM
- Re: [Asrg] MTX, a distributed DNS whitelist requi… Alessandro Vesely