Basically, all you have to do is create the emails you want to send and schedule a time for them to be sent out. There are a variety of programs online, including ours, that allow you to easily complete this process. There are also many resources available to help you develop attractive, persuasive emails.
Just make sure you include an unsubscribe option in your emails. You should also track the data from your emails in order to revise and optimize future email campaigns.