--On 30 January 2008 19:06:54 +0000 Greg Hewgill <greg(_at_)hewgill(_dot_)com>
wrote:
The 25 million is the total number of tested domains. I don't currently
keep track of how many domains publish any SPF policy at all, but I
probably should go back and do that. It would be interesting to know
overall SPF adoption numbers, regardless of policy.
Yes, that would be very useful.
An SPF pass for a trusted domain can be used to avoid spam filtering, so
even these records are worth checking for, but only if a large number of
domains have them. 4% is pretty good, but I'd guess that there must be more
than 10% out there if 4% actually use -all.
--
Ian Eiloart
IT Services, University of Sussex
x3148
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