Domain DNSNameservers, SOA and public A/AAAA signals used by the domain.
Waiting
Queued for lookup.
Email diagnostics
Email Health Check
Enter an email address or domain and run a single report across DNS, mail servers, reputation, authentication and transport-security signals.
This is a point-in-time diagnostic report, not a deliverability guarantee. Some mail providers use separate outbound IPs from the inbound MX servers, so reputation results for MX addresses may not represent every message you send.
How to read an email health report
Email Health starts with the domain behind an email address and discovers the public DNS and mail infrastructure automatically. OCS Ping checks mail routing, SMTP reachability, reverse DNS, selected reputation sources, SPF and DMARC, modern SMTP transport-security records, DNSSEC, CAA and the public HTTPS certificate.
The report is designed to surface concrete configuration signals without requiring a DKIM selector. DKIM is intentionally excluded from the automatic report because a selector is chosen by the sender and cannot be discovered reliably from the domain name alone.
FAQ
Common questions
Why is there no DKIM selector field?
DKIM records are stored under selector-specific DNS names chosen by the sending platform. A domain-only scan cannot reliably know that selector, so OCS Ping does not guess and present an uncertain result in the automatic Email Health report.
Does a clean blacklist result guarantee email delivery?
No. The reputation check covers selected public MX IPv4 addresses and selected DNSBL/RBL sources. Outbound sending IPs can be different, and receiving systems use many additional reputation and policy signals.
Why can SMTP show unavailable when the mail server works?
Network policies can block SMTP port 25 somewhere along the test path. OCS Ping reports that situation as unavailable rather than treating it as proof that the remote mail server is offline.
