Relay Email to SMTP Server?

This setting can also be maintained on the SMTP Relay Configuration window.

Select this checkbox if the J1 Client Application Services that is installed on this machine is allowed to send/relay e-mail notifications to the SMTP server.

In other words, if you want J1 Desktop to send e-mail notifications, you must select a machine that will relay the e-mail notifications; however, only one machine can be designated.