Email Marketing: A Beginner's Guide - Master email marketing with these 3 short ebooks from Drip.
Awesome Mails - Awesome Mails creates beautiful image map emails, featuring an easy to use drag-and-drop editor...
HubSpot Free Email Marketing - Powerful drag and drop email marketing in the HubSpot CRM
Flexmail Solution - Professional email marketing with powerful and easy-to-use features
Google Sheets Email Marketing - Email automation and validations directly from Google Sheets
Kingmailer - Kingmailer helps you send, receive and route/forward emails.