The form for creating a mail-based installation also allows the configuration option for the automatic distribution via „PostOpen“ script from within the mail databases of the end-user: 

On the form, simply select the "Mailbox PostOpen Script" option. When you finished completing the form, select the overhead menu item Actions - Generate PostOpen Script. Please add the resulting LotusScript Code to the design of the mail database or template per the instructions shown within the “Generate PostOpen Script” action. Subsequently, add the request MC_Install to an appropriate place of the mailbox design.