You can send an Email to one or more event guests if the following conditions are met:
Your organisation has turned on Email Messaging
Your event guests have valid Email Addresses that are saved in the Contact Profile fields you have designated as suitable for storing Email Addresses
There are two ways to broadcast an Email to an event’s guests
Start from the Event page
How to send an Email from the Event page
Go to the Event page
Select My Apps in the top menu
Select Events
Select the Event you are interested in
You will arrive on the Event page
Select Message Guests in the Event Actions panel
The Message Guests popup appears.
In the Choose Format dropdown list: select EMAIL
It only lists the guests that have a valid mobile number saved in one of the designated fields
Select the guests whom you would like to message
Type the Subject Line in the box
Type the message in the box
Choose whether you want to send the message Now or scheduled for Later
If you select Later, you can enter the Date and Time that you want the message to be sent
Press Send