Sending a notification to all users

Sending a notification to all users

This must be an easy on, but I can't figure it out myself.

How do I configure the form notification in order to send an email to all users of the database each time a new record is successfully added. 

The only available variables in the To: field are  "zoho.adminuserid" and "zoho.loginuserid" but there seems to be nothing to send the mail to all users, regardless their current login state.