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nicanorflavier / spf-dkim-dmarc-simplified

Email security is a key part of internet communication. But what are SPF, DKIM, and DMARC, and how do they work? This guide will explain it all in simple terms to make these concepts clearer.
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DMARC behaviour is unclear or stangely explained #7

Open borrelm opened 1 month ago

borrelm commented 1 month ago

Hi !

First thanks for this awesome doc, I wish I found it earlier when I was learning about these things !

Regarding DMARC :

If an email passes the SPF and DKIM checks, the receiver then looks at the DMARC rule book to decide what to do with the email

I think it is instead fails the SPF and DKIM checks as both need to fail to DMARC to fail and then check the rulebook to decide what to do (none, quarantine, reject)

In general I think some rewording or clarification may be needed to clarify how DMARC operate based on SPF and DKIM checks :

nicanorflavier commented 1 month ago

@borrelm thanks for your inputs, feel free to raise a PR and if everything is good we can merge to master.