MX Lookup
Check a domain’s email servers, priorities, and core DNS configuration with the free MX lookup tool.
Open MX LookupWhat is MX Lookup?
MX Lookup is an online analysis tool for checking the mail servers that accept email for a domain and their priority order. It helps you reach the right data quickly when domain, IP, email, or certificate infrastructure changes.
This page provides a clear definition, usage steps, and interpretation guide. Results can depend on DNS caches, registry privacy, CDNs, network timeouts, and remote service availability. Confirm critical changes with an authoritative provider or more than one resolver.
How does it work?
The request is sent to the appropriate technical source for the input type. The result may include MX hosts, priority values, related A or AAAA records, and configuration signals that may affect delivery. Always evaluate the returned value together with its source, timestamp, record type, and intended configuration.
How to use it
- Open the tool above and enter the target. Example: ornekalanadi.com.
- Check the input format and submit the request.
- Compare dates, hostnames, priorities, policies, and returned values with the expected configuration.
- If you make a correction, wait for the relevant cache or TTL and test again.
How to interpret the results
A technically valid response is not automatically a correct configuration. Investigate unexpected hosts, expired or nearly expired certificates, incorrect IP addresses, missing authorization, and inconsistent DNS records. Back up the current configuration before changing production systems.
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Frequently asked questions
What does MX priority mean?
A lower number has higher priority; servers with the same priority may share traffic.
Can a domain receive email without MX records?
Delivery to an A or AAAA record may be attempted, but explicit MX records are recommended for reliable mail service.
Does an MX record replace SPF?
No. MX identifies receiving servers, while SPF authorizes sending sources.