DKIM-Signature: v=1; …; d=example.com; …
From: [email protected]
Date: Fri, Feb 15 2002 16:54:30 -0800
To: [email protected]
Subject: here’s a sample

Let’s use the analogy of a wax seal on a letter to explain DKIM.

DKIM, or DomainKeys Identified Mail, is another method used by DMARC to verify if an email is from who it says it’s from. It’s like checking if the wax seal on a letter matches the seal of the person who supposedly sent it.

In our example, the letter has the following details:

  • Wax Seal (DKIM-Signature): example.com
  • Letter’s Signature (From): [email protected]
  • Date: Fri, Feb 15 2002 16:54:30 -0800
  • Recipient’s Address (To): [email protected]
  • Subject: here’s a sample

In this case, the wax seal on the letter (DKIM-Signature) and the signature on the letter (From) are from the same person (example.com). This is like the wax seal on the letter matching the signature of the person who supposedly sent it.

So, DMARC would say that the identifiers are in alignment, meaning everything checks out and the email is likely to be legitimate. It’s like confirming that the letter is indeed from the person who supposedly sent it because their wax seal matches their signature.

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