DNS > My Resource Record

The MX resource record is used by e-mail applications to locate a mail server by using the DNS domain name that appears in the destination e-mail address for the recipient.

The MX resource record shows the fully qualified DNS domain name for the computer that processes e-mail for a domain.

If multiple MX resource records exist, the DNS Client service attempts to contact the e-mail servers in the order of preference using the Mail server priority field. The lowest value has the highest priority, and the highest value has the lowest priority.

To add a mail exchanger MX resource record to a zone

1. At the DNS server, click Start, point to Administrative Tools, and then click DNS.
2. In the console tree, right-click the applicable zone, and then click New Mail Exchanger (MX).
3. In Host or child domain, type the name of the host or domain of the mail exchanger for this Domain only if it is different from the parent domain; otherwise, leave this field blank.
4. In Fully qualified domain name (FQDN) of mail server, type the DNS domain name of in existing mail server that can function as a mail exchanger for the domain.
5. In Mail server priority, type a number between 0 and 65535 that indicates the priority of the mail server among other mail exchangers for this domain.

The mailer attempts to deliver mail to servers with lower priority numbers before attempting to deliver to servers with higher priority numbers.