SPF says pass, DKIM says pass — yet DMARC still fails and your mail is treated as unauthenticated.
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What this means
Alignment. DMARC doesn't just ask “did SPF/DKIM pass” — it asks “did they pass for the SAME domain the human sees in the From: line”. A newsletter tool signing as itself (not as you) passes DKIM but fails alignment.
How to fix it
Step 1. Set up a branded/custom sending domain inside each tool so it signs as your domain.
Step 2. For SPF alignment, the Return-Path domain must match your From domain — most ESPs offer a custom Return-Path (CNAME).
Step 3. Re-check with a fresh report after 24–48h.
Frequently asked
How long until fixes take effect?
DNS changes propagate within minutes to 48 hours. Mailbox providers pick up the new records on their next check — most senders see bounces stop within a day of correct configuration.
Does this apply if I send fewer than 5,000 emails a day?
Formal enforcement targets bulk senders, but partial authentication already costs you inbox placement at every volume — and spoofing protection matters regardless of how much you send.
Can I just ask my hosting provider to fix it?
Hosting support can add DNS records for you, but they don't know which services send as your domain. You (or a monitoring tool reading your DMARC reports) have to provide that list — that's the actual hard part.
Don't want to babysit DNS records? DMARCKeeper monitors your reports, names every sender, and walks you to full p=reject protection. Start free monitoring →