Same, you MUST implement domainkeys because yahoo likes it.
Hopefully domainkey will retire this year when yahoo moves from dk to dkim.
Anyone heard of dates?
----- Original Message -----
From: "John Levine" <johnl(_at_)taugh(_dot_)com>
To: asrg(_at_)irtf(_dot_)org
Sent: Wednesday, 21 January, 2009 1:04:27 PM (GMT+1200) Auto-Detected
Subject: Re: [Asrg] SPF, was where the message
Don't hold your breath. SPF is dead -- and good riddance, it was a very
stupid idea --
So dead that of hotmail.com, gmail.com, mac.com, apple.com, microsoft.com,
facebook.com, ebay.com only er..., all of them publish SPF records.
For largely political reasons, Hotmail requires anyone sending a
significant amount of mail to them to have Sender-ID records.
For senders that are on its whitelist, AOL reverse engineers the IP
addresses to whitelist from the sender's SPF records, which is way
easier all around than the former mostly manual system.
Since S-ID falls back to SPF records, most senders just publish one set of
SPF records for both. Note that neither of these are using SPF for its
nominal purpose; I'm not aware of any large system that does.
R's,
John
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