Guides
Email authentication in plain words
4 short guides to DMARC, SPF and DKIM for whoever looks after a company's email. They start from the beginning.
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What is DMARC?
What DMARC asks mailbox providers to do, and what its reports show you.
4 min read
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SPF, DKIM and DMARC together
The three places an email names a sending domain, and which check reads which.
4 min read
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The DMARC policy, step by step
The steps from p=none to p=reject, and when to take each one.
4 min read
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What Google, Yahoo and Microsoft ask of senders
Who their rules apply to, what they require, and since when.
4 min read
See it for your own domain
Mailmoni reads the DMARC reports about your domain and tells you, service by service, what passes and what to change.