A mail exchange (MX) record identifies a server that handles email messages for your domain. A domain has one or more MX records listed in priorty order. When someone sends an email message to your domain, the sender's mail server delivers it to the first available server in the priority list. You create new MX records, or change their priority, in order to change how email is processed for the domain.
You create MX records using the administration tools available from your domain provider. The basic steps below are applicable to all domain providers.
To create MX records for a domain:
- Log in to the administrative console for your domain.
- Locate the page from which you can update the domain MX records.
You may need to enable advanced settings.
- Add an MX record for the email server.
Enter the fully qualified server name, such as MAIL.GLOBAL.FRONTBRIDGE.COM. Many domain providers also require a trailing period at the end of the server name.
- Set the priority for the record.
MX records with a lower number have higher priority than MX records with a higher number. Different domain hosts use different priority numbering systems. Regardless of the system, the important fact is the relative priorities of MX records.
- If your domain provider enables you to set the Time to Live (TTL) value for the record, set it to 300 seconds.
- To add MX records for additional servers, repeat steps 3 through 5 for those servers.
Give backup servers a lower priority than the primary email server.
- Delete any existing MX records, or lower their priority.
If you plan to continue routing mail to your legacy email server, retain the existing MX records with a lower priority.
- Save your changes.
Keep in mind that changes to MX records may take up to 48 hours to propagate throughout the Internet.
If you have difficulty creating MX records, contact your domain provider for assistance.