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Re: SPF [WAS: Best practices for hosting web but NOT email?]

To: dns@list.cr.yp.to
Subject: Re: SPF [WAS: Best practices for hosting web but NOT email?]
From: Kyle Wheeler <kyle-djbdns@memoryhole.net>
Date: Sat, 4 Nov 2006 12:26:55 -0500
Comment: DomainKeys? See http://antispam.yahoo.com/domainkeys
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References: <20061102090902.bc072142.josh@trutwins.homeip.net> <Pine.LNX.4.44.0611021526351.18862-100000@piper.av8.net>
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On Thursday, November  2 at 03:34 PM, quoth Dean Anderson:
On Thu, 2 Nov 2006, Josh Trutwin wrote:

Peter, not entirely following you.  Are you suggesting I should
avoid SPF entirely?

For different reasons, Yes: avoid SPF entirely.  There were 14 reasons
that I collected originally, and a couple more discovered since.

I'd love to see them, to add them to my arsenal of why SPF is an idiotic idea (the broken forwarding is enough for me).

But no one (significant) blocks email based on SPF,

There, unfortunately, I beg to differ. In my experience, verizon.net blocks mail based on SPF (which REALLY bugs me, because some of my clients have me forward their email to their verizon.net accounts, and my server is left holding the bag for all these mails verizon won't accept). They aren't hotmail.com, but they're still a major ISP in the US.

~Kyle
--
All men by nature desire to know.
                                                         -- Aristotle

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