Mail Health
Free Mail Health Checker
Check MX, SPF, DKIM and DMARC configuration for any domain — live, in seconds — and fix the reasons your mail lands in spam.
Mail Health Checker
MX, SPF, DKIM, DMARC, SMTP, reverse DNS and blacklist status in one score.
Enter a domain above to run a real, live check.
Capabilities
What it checks
MX records
Mail server hostnames and delivery priority.
SPF
Which senders are authorized to send mail for the domain.
DKIM
Cryptographic signing configuration for outbound mail.
DMARC
Policy enforcement for failed SPF/DKIM checks.
Why use it
Benefits
- Catch misconfigured SPF/DKIM before a campaign lands in spam.
- Verify DMARC policy after a domain or provider migration.
- Export a full report to share with a mail admin or client.
FAQ
Frequently Asked Questions
MX records, SPF, DKIM and DMARC configuration — the core signals mailbox providers use to trust (or reject) mail from your domain.