DNS question, null MX records

Daniel Senie dts at senie.com
Tue Dec 15 13:19:28 CST 2009


I disagree. There was considerable concern with a misuse of a mechanism and its effect on various systems. That, from discussion on the IETF mailing list I was on when it was discussed there. There was no rough consensus that I could see.


On Dec 15, 2009, at 2:09 PM, Tony Finch wrote:

> On Tue, 15 Dec 2009, Florian Weimer wrote:
>> * Eric J. Esslinger:
>> 
>>> I found a reference to a null MX proposal, constructed so:
>>> example.com    IN    MX 0 .
>> 
>> I think this is quite controversal.
> 
> My impression from discussions on various IETF lists is that most people
> think it is a good idea, it is already reasonably widely implemented, but
> no-one has the time and persistence to push a spec through to publication.
> 
> Tony.
> -- 
> f.anthony.n.finch  <dot at dotat.at>  http://dotat.at/
> GERMAN BIGHT HUMBER: SOUTHWEST 5 TO 7. MODERATE OR ROUGH. SQUALLY SHOWERS.
> MODERATE OR GOOD.





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