I have uploaded a draft describing a method of linking DKIM signatures to envelope addresses with the intent of detecting DKIM replay and preventing the resulting reputational damage.
https://datatracker.ietf.org/doc/draft-bradshaw-envelope-validation-extension-dkim/ Comments/feedback welcome. Thanks. -- Marc Bradshaw marcbradshaw.net | @marcbradshaw <https://twitter.com/marcbradshaw>
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