On Wed, 3 Aug 2005, Hallam-Baker, Phillip wrote:
we do as a practical matter require a clear mechanism for distinguishing
between DKIM records and SPF records. We also need to anticipate
possible future SPF like protocols.
The _domainkey and _policy labels should be sufficient (though _policy is
possibly too generic for good future-proofing). This is because _ can't
appear in mail domains which is where SPF records appear.
Tony.
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