On Wednesday 14 January 2004 10:34 am, Wechsler wrote:
It is ESSENTIAL that a ?all record fares no worse than no record in spam
checking, otherwise publishing SPF records INCREASES the likelihood that
some of a domain's outgoing mail will be treated as spam, and people
will refuse to implement it.
Agreed. I see the unknown result as meaning 'fallback to vanilla SMTP', so it
is the same as having no SPF record.
There is no logical reason to interpret it differently, and every reason not
to.
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