I am not sure if I can use my list. What types of lists can be used?
SimplyCast only allows you to send email to lists of subscribers who have specifically requested to receive email from you. These people should have performed a double opt-in process where they have both entered and confirmed their email address.
You cannot use any third party lists with SimplyCast. Using a third party list is a violation of our terms and conditions and anti-spam policies and will get your account shut down without refund.