The application comes with a simple to use and powerful list manager. You can create groups, lists and import leads from a seperate data file. Every lead in each list contains a field in its Xml file for opt-in/out's. Our Opt-In/Out's are done with pop3. You must sign up for an email account with its pop3 settings enabled. A simple Opt-Out link can be added to your outgoing Email, this link contains information about the list and contact that it was used for.