Free email health check
One domain. One grade. Your email risks in priority order.
Check MX, SPF, DKIM, and DMARC together. Get a plain-English score, the problems that matter first, and links to the exact diagnostic for each one.
How the email health grade is calculated
The 100-point score rewards four foundations: working MX records (20 points), a published and structurally valid SPF record (25), a discoverable DKIM public key (25), and DMARC publication, reporting, and enforcement (30). Missing or broken foundations lose their points; warnings stay visible even when a check earns partial credit.
Results are ordered by severity, so the first red item is usually the place to start. Each finding links to a focused checker that exposes the raw record and the detail needed to fix it. Nothing is hidden behind an email form.
The grade deliberately stays within what public DNS can prove. It does not claim to measure reputation or promise inbox placement, and a DKIM warning is not treated as conclusive because selectors cannot be enumerated from DNS.
Common questions
What does an email health check test?+
This check reads the public DNS records that support business email: MX for inbound routing, SPF for authorized senders, common DKIM selectors for signing keys, and DMARC for alignment, reporting, and spoofing policy. It then combines those findings into one weighted grade.
Does a high score guarantee my email reaches the inbox?+
No. Authentication and routing are essential foundations, but inbox placement also depends on sending reputation, complaint rates, content, engagement, list quality, sending volume, and whether each real message is authenticated correctly. Use the inbox test and header analyzer to inspect an actual message.
Why can the DKIM result say no common selector was found?+
DKIM selectors are chosen by each email provider and there is no public index of them. The scanner probes common names, so finding a key is conclusive, while finding none is only a warning. Check your provider's exact selector or send a real message to the inbox test before deciding DKIM is missing.
Is it safe to check someone else's domain?+
Yes. DNS email records are public by design so receiving mail systems can use them. The checker reads only those public records and does not log in, send mail, or change the domain.
How often should I check my email setup?+
Run a check after changing DNS, adding or removing a sending service, migrating email providers, or seeing new delivery failures. Because records can break later without warning, continuous monitoring is more reliable than remembering to scan manually.
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