ZyXEL UAG715 User Guide - Page 438
MX Record, Adding a MX Record
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Chapter 39 System The following table describes the labels in this screen. Table 178 Configuration > System > DNS > Domain Zone Forwarder Add LABEL Domain Zone DESCRIPTION A domain zone is a fully qualified domain name without the host. For example, zyxel.com.tw is the domain zone for the www.zyxel.com.tw fully qualified domain name. For example, whenever the UAG receives needs to resolve a zyxel.com.tw domain name, it can send a query to the recorded name server IP address. DNS Server Enter * if all domain zones are served by the specified DNS server(s). Select DNS Server(s) from ISP if your ISP dynamically assigns DNS server information. You also need to select an interface through which the ISP provides the DNS server IP address(es). The interface should be activated and set to be a DHCP client. The fields below display the (read-only) DNS server IP address(es) that the ISP assigns. N/A displays for any DNS server IP address fields for which the ISP does not assign an IP address. Select Public DNS Server if you have the IP address of a DNS server. Enter the DNS server's IP address in the field to the right. The UAG must be able to connect to the DNS server without using a VPN tunnel. The DNS server could be on the Internet or one of the UAG's local networks. You cannot use 0.0.0.0. Use the Query via field to select the interface through which the UAG sends DNS queries to a DNS server. OK Cancel Select Private DNS Server if you have the IP address of a DNS server to which the UAG connects through a VPN tunnel. Enter the DNS server's IP address in the field to the right. You cannot use 0.0.0.0. Click OK to save your customized settings and exit this screen. Click Cancel to exit this screen without saving 39.6.8 MX Record A MX (Mail eXchange) record indicates which host is responsible for the mail for a particular domain, that is, controls where mail is sent for that domain. If you do not configure proper MX records for your domain or other domain, external e-mail from other mail servers will not be able to be delivered to your mail server and vice versa. Each host or domain can have only one MX record, that is, one domain is mapping to one host. 39.6.9 Adding a MX Record Click the Add icon in the MX Record table to add a MX record. Figure 289 Configuration > System > DNS > MX Record Add 438 UAG715 User's Guide