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Re: Last Call: draft-klensin-rfc2821bis

2008-03-26 13:54:23

Tony Hain wrote:
This document is not the place to fight spam.


 Until all the implementations remove
fall-back to A, the correct behavior is to also fall-back to AAAA. People
(particularly the apps dev & support communities) are having a hard enough
time getting their heads around even thinking about IPv6 that making your
proposed procedural change is insane. Whatever reasons people have for not
implementing MX will not change just because they are deploying IPv6. 

I keep trying to understand why the SMTP use of AAAA records should be any 
different than its use of A records.  Haven't heard a solid explanation, 
nevermind seen consensus forming around it.



   Dave Crocker
   Brandenburg InternetWorking
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