Adding/Removing Mail Domains

About this task

On the Configuration > Routing > Mail Domains page, you can specify hosts to which messages are routed for multiple domains.


  • To add a mail-accepting domain:
    1. Click Add.

      The Add Mail Domain dialog box is displayed.

    2. In the Incoming mail domain name text box, enter the fully qualified domain name.
    3. From the drop-down list, select:
      • Include sub-domains: If you choose to include sub-domains, messages to a sub-domain will be delivered to the destination that you specify in step 6.


      • Do not include sub-domains: If you exclude sub-domains, messages to a sub-domain will be rejected unless there is a separate record for the fully qualified sub-domain.
    4. [Optional] If you chose Include sub-domains in the previous step, you can make one or more exceptions by specifying any sub-domains that you don't want to include. To do so, select the Exclude sub-domains check box, enter a sub-domain, and click Add. Repeat these steps for each sub-domain that you want to exclude.
    5. Click Next.
    6. On the Mail Delivery page, under Mail delivery settings, select one of the following:
      • Deliver using DNS MX records: Mail is delivered according to MX records associated with the domain you specified in step 2.
      • Deliver to the following server or group: Mail is delivered to the server or server group that you select from the drop-down list. This drop-down list contains available delivery servers or server groups that were specified on the Configuration > Routing > Mail Delivery Servers page.
    7. Click Next.
    8. [Optional: clustered appliances only] On the Cluster Settings page, under Appliances, select one of the following:
      • All appliances: The domain applies to all appliances in the cluster.
      • Only the following appliance(s): Select the check box next to the appliance(s) for which you want the domain to apply.
    9. Click Save.

      The new domain-to-host mapping information is displayed in the Incoming mail domains table. (In a clustered environment, affected appliances are indicated in the Applies to column. Mouse over the displayed appliance name for the complete hostname or list of hostnames.)

  • To remove a mail-accepting domain:
    Select the check box beside the domain that you want to remove, and click Delete.