On the Create Campaign Page for the Email Campaign.
First, Create your Campaign.
You can Create your Campaign from Scratch or Load a Template.
Click the SAVE button near the top left corner before Previewing your Campaign.
Once Saved, click on the Menu Icon also near the top left corner.
A menu will open.
There are Two different ways to Preview your Campaign.
You can click on the Preview item in the menu.
A new page will load.
Giving you a basic Preview of your Campaign.
You can click on the Send Test item in the menu.
That will Send a Test Email to your Main Email Address.
Your Main Email Address is the Email Address you use to Login to your offrs Account.
If you don't like the way your Campaign looks.
You can always make Changes to it.
Make sure the click the SAVE button near the top left corner after any Changes you make.
You can then Preview your Campaign again.