MX Lookup

MX Lookup tool looks for a given domain name for MX records. These records can be added to a DNS domain to set up a special email server for specific domains. Enter any domain to validate and verify MX records now.

What is a DNS MX record?

In 2020 nearly 466 billion people are estimated to have accessed the internet. There are currently more than 20 billion internet web pages around today. Almost every domain has its own DNS records which are mappings files that route the system to the domain-specific service. The DNS MX records are a DNS records that sends the email to the proper mail server or email provider. If the MX records exist, the mail server established an SMTP-compatible interface in compliance with its priority hierarchy.

Check multiple MX records

It's a common technique to set up multiple MX records to increase the chances that your email is delivered. For example, when it is necessary to add an additional mx record or delete MX records from a domain, you will need to complete this process until the problem has been resolved.

Performance-wise, it's a best practice to setup up multiple MX records to make sure the mail service is available even when one mail server is down. In case of downtime, the MX record with the second-lowest value will be selected.

For more in depth details please read our What is an MX Record Resource.