What does MXDoctor do?
MXDoctor is a free toolbox for email and DNS diagnostics. Run a full domain health check scored out of 100, or use individual tools: SPF checker, DMARC checker and generator, DKIM checker, DNS lookup, blacklist check, SSL checker, uptime check and WHOIS lookup. No sign-up, instant results — a free alternative to MXToolbox for sysadmins, hosting providers and webmasters.
Who should use MXDoctor?
domain owners, email admins, IT staff, webmasters are the clearest fit based on how the product is positioned.
Best fit
Pricing: Free
Platforms: Web
How much does MXDoctor cost?
Free Check the provider’s own page for the latest pricing, packages and terms.
Details, pricing and availability can change. We use provider information, verified owner updates and editorial review where available. Check the provider’s own page before making a purchase, booking or important decision.
Profile last updated 25 Oct 2026.
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