Learn
Guides to DMARC, in plain language.
Short, specific and honest about what DMARC can and cannot do.
4 min read
What DMARC does and does not do
DMARC stops mail that forges your exact domain. It does not stop every kind of phishing. Here is where the line is.
6 min read
From p=none to p=reject, in the safe order
A step-by-step path to enforcement that does not hold your real mail.
4 min read
The SPF 10-lookup limit, explained
Why SPF fails when you add one more service, and how to stay inside the limit.
5 min read
How to read DMARC reports
What aggregate and forensic reports contain, and what to look for first.