Demystifying DMARC: A guide to preventing email spoofing

A screenshot of a premade aggreate/summary DMARC dashboard in ELK using data from pardeemarc

DMARC can stop spoofed spam and phishing from reaching you and your customers, protecting your information security and your brand. However, complexity and misconceptions deter many organizations from ever deploying it. Part mythbusting , part implementation guide, this post explains the shortcomings of SPF and DKIM, what DMARC is, how to deploy DMARC properly, and how to respond to DMARC reports – all without the need for an additional vendor, thanks to open source software!

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