An MX record directs email sent to your domain to the specific mail servers responsible for receiving it. Each record points to a mail server hostname and includes a priority value to define backup servers.
ℹ️ The Mailserver hostname field should contain the hostname or FQDN of a mail server which will accept mail for the host specified by Hostname. The Priority field should contain a preference for this mail server. Mail transfer agents prefer MX records with lower values in Priority.
Example:
- mail.example.com. (FQDN)
- mail (hostname only)
The form contains the following fields:
• Hostname: The name that this record describes. Wildcard values such as * or *.sub are supported, and this field can contain an FQDN or just a hostname. If you specify an FQDN, the name must end with a dot; if you specify just a hostname, it must not end with a dot.
If you want email addresses of the form user@example.com, you must fill in example.com. in the Hostname field (or leave it empty);
if you want email addresses of the form user@sub.example.com, you must fill in sub or sub.example.com. in the Hostname field.
Examples:
- foo
- foo.example.com.
- www
- example.com.
- You can also leave the field empty which has the same meaning as if you'd fill in example.com.
• Mailserver hostname: The Mailserver hostname field should contain the hostname or FQDN of a mail server which will accept mail for the host specified by Hostname. Please note that this Mailserver hostname must always be an A record - CNAME records are not allowed.
Examples:
- mail.example.com. (FQDN)
- mail (hostname only)
• Priority: The Priority field should contain a preference for this mail server, usually between 0 and 100. Mail transfer agents prefer MX records with lower values in Priority.
• TTL: The time interval (in seconds) that this record may be cached before the source of the information should again be consulted. Zero values are interpreted to mean that the record can only be used for the transaction in progress, and should not be cached.
• Active: This defines whether this MX record is active or not.
