If I do not publish any key records and a bad actor whips up an email
purported to be from me with a fake signature attached, a non dkim
compliant mta may have a rule that states "signed messages are probably
okay" that might bypass some spam checking software. Before DKIM is
fully adopted/deployed expect to see this happen,
How long did it take people to realize that the majority of mail that
passes SPF is spam?
R's,
John
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