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Stuart D. Gathman wrote:
Does anyone have any stats on whether there are enough spf2.0/mfrom
records out there to be worth checking for? I don't care about
spf2.0/pra (not being much interested in protecting Resent-Sender),
but spf2.0/mfrom is equivalent to SPF, and the more SPF policies the
better.
- From a rather large e-mail database (whose exact source and nature I can't
disclose due to an NDA, but it has > 100 million messages from the last
few months):
(Fixed-width font required for proper viewing!)
# domains with "spf2.0/...,mfrom,..."
--------------------------------------- ~= 0.0052
# domains with "v=spf1" or "spf2.0"
# messages with "spf2.0/...,mfrom,..."
---------------------------------------- ~= 0.0064
# messages with "v=spf1" or "spf2.0"
I'll leave drawing conclusions up to you ...
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