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Configuring DNS for Mail Service
Configuring DNS for mail service is enabling Mail Exchange (MX) records with your own DNS server. If you have an Internet Service Provider (ISP) that provides you with DNS service, you’ll need to contact the ISP so that they can enable your MX records. Only follow these steps if you provide your own DNS Service.
To enable MX records:
1In Server Admin, choose DNS in the Computers & Services list.
2Click Settings.
3Select the Zones tab.
4Select the Zone you want to use.
5Click the Add button under the Records pane.
6Choose MX from the Type
7Enter the domain name (like “example.com.”) in the From field.
8Enter the name of the mail server (like “mail.example.com.”) in the To field.
9Enter a precendence number.
10Click OK.
Enabling Redundant Mail Servers
You may need to set up multiple servers for redundancy. If this is the case, you’ll need to add additional information to each MX record. Create one record for each auxiliary server. This consists of two steps:
These instructions assume you have an existing MX record for a primary mail server. If not, please see “Configuring DNS for Mail Service” on page 34.
Step 1: Edit the MX record of the primary mail server
1In Server Admin, choose DNS in the Computers & Services list.
2Click Settings.
3Select the Zones tab.
4Select the Zone you want to use.
5Click the primary mail server’s MX record in the Records pane.
6Click the Edit button below the Records pane.
7Enter a low precedence number for that server.
A lower number indicates it will be chosen first, if available, to receive mail.
8Click OK.
9Proceed to Step 2.
Chapter 2 DNS Service
