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Re: SPF deployment, was RFC 3929 on Alternative Decision ...

2004-10-30 21:14:57

The amount of mail going through SPF tests is still small, and only a few
aggressively wacky sites block mail that fails SPF.

With the release of SA3.0, this is likely changing.

Small amount of mail tested, or few wacky sites?  Both, I suppose.

If people really are doing tests of SPF or Sender ID or other similar
schemes, I'd be most interested in hearing about the results,
particularly numbers of how much legit mail is tagged valid or
invalid, how much spam is tagged valid or invalid, and how spammers
are adapting/ Ciphertrust says they've seen more spam than good mail
pass SPF checks.  That doesn't surprise me, but their numbers were so
small that I'd like to see some confirmation.


-- 
John R. Levine, IECC, POB 727, Trumansburg NY 14886 +1 607 330 5711
johnl(_at_)iecc(_dot_)com, Mayor, http://johnlevine.com, 
Member, Provisional board, Coalition Against Unsolicited Commercial E-mail