/// Free Tool
Domain & Email Health Check
Enter a domain. We check DNS, SPF, DKIM, DMARC, your mail server, reverse DNS, and the SSL certificate in one pass, then tell you what is healthy and what needs work. No signup. No catch.
✕ Run live, not cached. Every check is a real DNS, SMTP, or TLS lookup made the moment you hit the button. We read your mail server banner and check for STARTTLS, but we never send mail.
✕ Results are grouped into DNS, email authentication, mail server, and TLS, each marked pass, warn, or fail with the detail behind the verdict.
Running DNS, mail, and TLS checks