General Information on Secure Mail Servers

The mail handler on the Firewall will forward all incoming mail to a centralized mail handler to store and route mail to and from the hosts in the inside network. Use this function to identify the appropriate servers.

When you add a service, that service is enabled. When you remove a service, that service is disabled.

Note:For security purposes, you should only send mail from the Firewall when the administrator has a telnet session to the Firewall on port 25. Otherwise, the secure domain name of the firewall may be exposed to the world. The AIX mail facility will bypass the Firewall mail gateway when sent from the Firewall locally.

Hints for Configuring Firewall Mail Services:

Further Information

Handling Domain Name and Mail Services

Secure Domain Name (Mail Server)

The Secure Domain Name is the name of your own network, the domain protected by the Firewall. Note that the fully qualified domain name is required.

Secure Network Mail Server

The Secure Network Mail Server field is the name of a host (use host name, not IP address) within the secure network that is the mail server for your network. The Firewall will forward all mail from outside the network, to a secure host, to this mail server, which in turn forwards the mail to the destination host. Users inside the network must configure their sendmail.cf configuration files to send all external mail to this mail server.

Public Domain Name

The Public Domain Name is the name the non-secure network knows your secure network by. For example, if your network is secnet.idaho.edu, your public domain name is idaho.edu. The Firewall name server uses this domain and its name servers when resolving outside host names. Note that the fully qualified domain name is required.

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