Hi, I know that an underscore in DKIM selectornames usually trigger a DKIM neutral error. I guess somewhere in the RFC it is stated if an underscore is allowed or accepted. Can someone please point out the correct RFC to me?
Does anyone use such a "failure" to score mails? I guess it's probably more none-aware admins as real spammers, but I do not have any numbers so far. Thanks Norbert
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