Acelle Mail and FormKeep
Acelle Mail is a self hosted, open source, full-featured and easy to use email marketing web application written in PHP / Laravel 5 that lets you send high-volume marketing emails via your own server or through other email service (SMTP) providers.
Learn more at acellemail.com/
In a matter of minutes and without a single line of code, you can connect FormKeep and Acelle Mail by using Zapier.
Zapier has a free plan that provides a simple and straight forward way to move your data into Acelle Mail.
Connect FormKeep and Acelle Mail