Parses your DMARC record and warns if policy is p=none, missing rua, or misaligned with SPF/DKIM — the three most common Gmail 2024+ rejection reasons.
Quick answer
Lemwatch fetches _dmarc.yourdomain.com and warns on p=none, missing rua, wrong alignment, or invalid syntax.
What it checks
v=DMARC1 tag and syntax
Policy strength (none / quarantine / reject)
rua= reporting address
Alignment mode (aspf / adkim)
Subdomain policy (sp=)
Where to find it in Lemwatch
Site details → Security → Email auth.
How to fix
Start at p=none with a valid rua= to collect reports.
Review reports for 2 weeks.
Move to p=quarantine, then p=reject.
Ensure SPF or DKIM aligns with the From: domain.
FAQ
Why is p=none flagged?
Gmail/Yahoo bulk-sender rules (Feb 2024+) require p=quarantine or stronger for senders >5k msgs/day.
What's a good rua address?
Use a mailbox you actually read, or a report-parsing service.