Although UnderConstructionPage automatically stores all your leads in a local database, you can still connect MailChimp to process your newsletter subscriptions and contact forms.
Besides lists, UnderConstructionPage also pulls in list segments. Select them on step #6 if you want to add emails to a specific segment.
If you turn on the Double Optin, please note that MailChimp sends a confirmation email after each signup. In order to get the registered email on the list/segment, a user who registered will have to confirm his or her subscription from their inbox.
Customers who purchased and have a valid PRO license - contact our support via the contact for built into the plugin or use the general contact form. If you're using the later method please include your license key in the message or contact us via the email address used when purchasing. This speeds things along.
Using the free version? We have you covered too. Head over to the forums. First look at older threads and if you don't find anything useful open a new thread. Support is community-powered so it can take some time to get an answer. If you need premium support this second - upgrade to PRO.