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Short, plain-English guides for getting DMARC right. No certifications, no jargon, no ten-page primers. Just what you need to know.
What is DMARC?
The 5-minute version. Why mailbox providers care, what gets blocked when it's wrong, and how DMARC fits with SPF and DKIM.
Setting up DMARC for the first time
Step-by-step: publish the record, point reports somewhere, watch what mail providers say about your domain.
DMARC alignment, in plain English
Why a message can pass SPF but still fail DMARC. Identifier alignment, the difference between authentication and alignment, and why DKIM is usually the easier fix.
Progressing past p=none safely
How to step from monitor-only to actual enforcement without breaking real mail. The 4-week ramp most domains should follow.
Counting your SPF lookups (and why you might be at 11)
SPF caps DNS lookups at 10. Cross it and mailbox providers return permerror. What counts, what doesn't, and how to come back under.
Why 1024-bit DKIM keys are being phased out
NIST deprecated 1024-bit RSA in 2013, Google now warns about it. Here's the rotation playbook to 2048-bit without breaking current mail.
Stop guessing — start monitoring.
Free for 1 domain. Set up in 5 minutes. We handle the report parsing, you read plain-English summaries.