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This tool provides fast and reliable MX record checks, online SPF validation, and DKIM record lookup. It helps diagnose issues with sending or receiving email, configuration mistakes, incorrect headers, weak DKIM keys, and SPF policy inconsistencies. Real DNS responses are shown without caching, making MX record checks as accurate as possible.
The tool instantly performs an MX lookup and displays priorities, routing, and real DNS responses. This helps verify whether your email system is correctly configured and where messages are being delivered. The service works like a convenient online MX lookup — without using a terminal or extra software.
The tool supports online SPF record validation,
showing your sending policy, allowed servers, and whether
~all or -all is present.
It also performs DKIM record lookups via TXT and CNAME.
This helps identify weak keys, missing selectors, or signing issues.
One tool — full SPF & DKIM diagnostics.
You get a structured report: TTL values, DNS responses, detected mail services (Google, Microsoft, Mandrill, SendGrid, Mailgun), DKIM selectors, and security recommendations. This speeds up the MX check, reduces configuration errors, and helps resolve delivery issues faster.
An MX record check analyzes the DNS configuration responsible for routing email. It shows which mail servers accept incoming mail for a domain, their priority, and whether the setup is correct. The tool helps identify issues affecting mail delivery.
An SPF check shows which servers are allowed to send email on behalf of the domain. Incorrect SPF often causes messages to be flagged as spam. The tool helps detect issues such as missing include rules, overly permissive policies (p=none), or missing ~all/-all mechanisms.
DKIM validation confirms that the domain signs outgoing mail using a valid cryptographic key. Missing or weak DKIM keys increase the chance of messages being flagged as unsafe. DKIM checks help diagnose configuration issues and improve email reputation.
Yes. The tool performs direct DNS queries without caching, producing highly accurate, real-time results. This is crucial when diagnosing delivery issues or testing new configurations.
Checking SPF and DKIM together provides a full picture of outgoing email authentication. SPF controls which servers may send email. DKIM ensures messages are properly signed. Combined checks reveal conflicts, missing keys, and misconfigurations.
Yes. MX lookups, SPF validation, and DKIM diagnostics are routine tasks for system administrators, marketers, website owners, and email deliverability experts. The tool is suitable for both beginners and professionals.
