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Email authentication

DKIM

A comprehensive collection of questions and answers about DKIM email authentication from email marketers, experts and technical documentation.
What is the recommended DKIM key algorithm?
Does a DKIM record's selector need to be unique per domain?
Does DKIM require DNSSEC to be effective?
What DKIM tag specifies the signed header fields?
What is the purpose of the DKIM 'p=' tag in the public key record?
Does a DKIM record use the 'TXT' DNS record type?
What is the 'g' tag in a DKIM record?
Does DKIM authenticate the 'Return-Path' header?
What is the purpose of multiple DKIM selectors?
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