What is DKIM?

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DomainKeys Identified Mail (DKIM) is the most complicated email authentication protocol out there. Even if you do extensive research, it’s hard to find one place that describes how it all works.

That’s why we’re breaking it down in the second post of a three-part series that explains SPF, DKIM, and DMARC in plain English

What it is: DomainKeys Identified Mail (DKIM) is a protocol that allows an organization to take responsibility for transmitting a message in a way that can be verified by mailbox providers. This verification is made possible through cryptographic authentication.

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