Pop ups should be easy to close. Nothing is more annoying than having a pop up appear and you do not know how to close it. Sometimes your visitor may not be interested in what you have to offer and so will decline the offer by closing the pop up. If the ability to close the pop up is difficult, such as the exit link is not visible, you can lose visitors. Therefore make sure that your pop up can be easily closed to avoid losing readers.
For example, if someone is on your list and they choose to unsubscribe later, they still count as an email in the system which is included in your total subscriber count. You must fully delete that record from your account in order to not have to pay for it, and so I found myself going into each of my individual lists and deleting unsubscribes from my account about once a week.
After you have entered your "List Name" you will need to enter a "List Description." Here is where you will describe the kind of information you'll be sending from this list. There is a 400 character limit for the "List Description." Subscribers will see your "List Description" on the unsubscribe page if they ever go to unsubscribe from your list. Once you are done entering your "List Description" click the "Next Step" button.