Guides
Learn DMARC
Short, practical guides to email authentication. Start with the basics, then work towards a DMARC policy that actually stops people sending mail as your domain.
DMARC basics
What is DMARC?
A plain-English explanation of DMARC: what it does, how it builds on SPF and DKIM, and why it matters for stopping email spoofing.
5 min read
DMARC basics
DMARC, DKIM and SPF: how they fit together
The three email authentication standards explained, what each one does, and why you need all three rather than picking one.
6 min read
Using DMARC
How to read a DMARC aggregate report
What is inside a DMARC aggregate report, what the fields mean, and how to turn the raw XML into decisions about your mail.
6 min read
Using DMARC
DMARC policies: p=none, quarantine and reject
What each DMARC policy does, how the pct tag controls rollout, and a safe path from monitoring to full enforcement.
5 min read