Content Locker

Hi,

I have a few quick questions:

1. Is it possible to integrate this plugin with Sendy through an API?
2. I use Learndash to protect my content. Logged in users (paid memberships) get access to all of the content on my website. Is it possible to set the plugin so it does not restrict this content to anyone that is logged in?
3. Is it possible to set this up as a double opt-in? We want to be sure we are collecting real email addresses.

Thanks,
-Rich