Emails cannot be set up for Trial websites. You'll need to have a published website in order to manage your email accounts.
One email account is included for free with each subscription account. Additional email accounts are $3 per month.
To create an Email Account:
From your website dashboard go to the EMAIL ADMIN tab and click on NEW EMAIL ACCOUNT. Type in the email address you want and then type in the mailbox password. It will take up to 10 minutes for your email to be configured so please wait at least 10 minutes to test that email account.