Email Domain Health Check
Run every email and DNS check for a domain at once and get a single report with everything that needs attention.
Free, no account needed.
What this report covers
- Mail servers (MX) and their reverse DNS.
- Email authentication: SPF, DKIM and DMARC.
- Reputation: major IP and domain blocklists.
- Transport security: MTA-STS and TLS-RPT.
- Brand indicators: BIMI.
- DNS health: nameservers and SOA consistency.
Reading the results
Failures are problems that stop mail from being delivered or leave your domain open to spoofing; fix these first. Warnings are weaker settings or best practices worth improving. Each item explains what was found and how to fix it.
Frequently asked questions
How often should I check my domain?
Whenever you change DNS or add a sending service, and every few months otherwise. For continuous monitoring of who sends as your domain, use DMARC Reports.
Related tools
- DMARC CheckerLook up a domain's DMARC record and see exactly what it does: the policy, where reports go, and what to fix.
- SPF Record CheckerValidate a domain's SPF record, expand every include and see how close it is to the 10-DNS-lookup limit.
- MX Record LookupSee which mail servers receive email for a domain, in priority order, with their IP addresses and reverse DNS.
- Email Blacklist CheckCheck an IP address or domain against widely used DNS blocklists, the lists mail servers consult to reject spam.
- DMARC Report AnalyzerDMARC reports are XML files most people never read. dmarcful turns them into a clear picture of everyone sending email as your domain, and tells you what to fix.