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From: Craig Whitmore [mailto:lennon(_at_)orcon(_dot_)net(_dot_)nz]
<snip>
But mostly positive feedback from the emails. A few people have removed
their SPF records completely (not waiting to fix them).
The biggest problem is people use "validators" to check their SPF records
and spf.pobox.com "wizard" that people use doesn't validate things very well
at all, and all the others ( <http://spam.co.nz/spf/>
http://spam.co.nz/spf/) have various degrees of getting it right.
So is there a RELIABLE and ACCURATE validator?
Is there an official one that is both RFC compliant and RFC
strict?
SPF is dangerous to implement (due to the way some people
use the results) if there is no way to determine the correctness.
Those that just removed their SPF records may be doing the
right thing -- I certainly considered it when I discovered the
"10 lookup rule" that isn't clearly documented and warned at
SPF.pobox.com.
My ISP also nearly screwed me up by quietly changing some
SmartHost IP addresses (that is, without notification.)
--
Herb
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