SPF, or Sender Policy Framework, is a method used by DMARC to verify if an email is from who it says it’s from. It’s like checking if the postman who’s delivering your letter is actually from the post office.

MAIL FROM: <[email protected]>

From: [email protected]
Date: Fri, Feb 15 2002 16:54:30 -0800
To: [email protected]
Subject: here's a sample

In our example, the postman is delivering a letter with the following details:

In this case, the return address on the envelope (MAIL FROM) and the signature on the letter (From) are from the same person ([email protected]). This is like the postman showing you an ID that matches the return address on the envelope.

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 postman is indeed from the post office because his ID matches the return address on the envelope.

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