To send invites to unregistered users, do the following:


Go to Email broadcast > Subscribers list and create a new list or go to an existing subscriber list.



Click on Import to import email addresses and their first and last name.



Once subscribers are imported, go to Email broadcast > Email campaigns


Create a new campaign and enter your welcome message or choose a preset email template. Select the subscriber list from the list of Recipients.



Click on Send Campaign on the top right to send the campaign.