Electronic mail gateway

A system administrator can configure the SMTP server to run as a mail gateway between TCP network users and users located on an NJE or Remote Spooling Communications Subsystem (RSCS) network that is attached to the local host. Figure 1 is an example of a mail gateway.

In Figure 1, the following abbreviations are used:

The local MVS™ host running both the TCP/IP program and NJE.

B and C

Hosts attached to host A through an NJE network.

D and E

Hosts attached to host A through a TCP network.

Figure 1. SMTP as a mail gateway

Users on hosts A, B, and C can send mail to users on TCP hosts D and E using the SMTPNOTE command. This method is described in Using the SMTPNOTE command from your terminal.

Users on TCP hosts D and E can send mail to the users on host A using addresses in the following format:

user_id@A.domain

Where:

user_id

Is the user ID of the TSO user on host A.

A.domain

Is the TCP host name of host A.

The users on TCP hosts D and E can send mail to users on NJE hosts B and C using addresses in the following format:

user_id%NJEHost@A.domain

Where:

user_id

Is the user ID of the user on the host.

NJEHost

Is the name of the NJE host (B or C).

A.domain

Is the TCP host name of host A.