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Re: current usage of AAAA implicit MX?

2008-04-04 10:21:56

I got the following message and received permission to repost it here.

        Tony Hansen

From: "Steinar H. Gunderson" <sesse(_at_)google(_dot_)com>


Harald sent this on to me, as I've set up and help administer the a real-world e-mail setup with IPv6 support. I'm not sure how much I can help you with the other points, but I can tell you that there is at least one site accepting e-mail with an AAAA record only -- my home machine. :-)

Apart from that, I don't think you can remove delivering e-mail directly to AAAA records; it's already supported in MTAs out there, and you can be pretty sure it's actually being used. Besides, if you sent mail to foo(_at_)example(_dot_)org, and had both A and AAAA records (but no MX), should you really not try delivering on IPv6?

/* Steinar */
-- Software Engineer, Google Norway

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