Idea of Popup plugin is to collect subscribers. And sending the emails about the updates or latest posts make plugins destined for mailings. So you need to install some mailing plugin for sending emails about your posts.
If you select subscription via WordPress, to find your subscribers go to Users tab on the left navigation menu of WordPress. Each profile of subscriber contains information about user email.
If you selected subscription to another mail service – all information about your subscribers you can find in your mail service account.
Also please check this article – http://supsystic.com/subscription/ It is about all subscription settings.
Also you can contact us through our internal support and describe detail what mail service you are using for subscription and other subscribe options. We will check what is wrong and will help you to solve the problem.
I have set it all up and I can see the people who subscribe through your directions above, however; there is no email sent to the subscriber saying they have been subscribed as well as nothing is sent to my inbox informing me of their actions taken. What do I have to do in order to get this up and running. Without them or myself receiving an email, it is a huge inconvenience and I have to check back frequently to see if someone has subscribed so I can send out the free gift that is included with subscription. Please help.
If you want your subscribers to get an email after their subscription, please check the settings on Subscribe tab. The option Create Subscriber without confirmation must not be chosen. (Please check the screenshot http://prntscr.com/ae7r5s). To get notifications about new subscribers you need to enter your email in New Subscriber Notification field (please check the screenshot http://prntscr.com/ae7rw3). You can also change the text of emails according to your taste on Subscribe tab.
If you still have any problems, please let me know.