This configuration variable determines the default From value for e-mail messages sent using the Mail action of Tango. For more information, see Chapter 18 of the User's Guide.
For more details on timed URL processing and startup/shutdown URLs, see Chapter 24 of the User's Guide.
This default is overridden by any value you type in the From field of the Mail action.
This configuration variable is also used as the default value of the FROM attribute of the <@URL> tag, and the From value in HTTP requests generated by Tango's timed URL processing, startup/shutdown URLs, and the URL specified in variableTimeoutTrigger.