Email Marketing: A Beginner's Guide - Master email marketing with these 3 short ebooks from Drip.
Vero Newsletters - The first "baseless" email marketing tool.
Elevatr Email Marketing Automation - Fast and easy email marketing software
Opens Are Dead - Everything email marketers need to get ready for iOS 15
HubSpot Free Email Marketing - Powerful drag and drop email marketing in the HubSpot CRM
NEWOLDSTAMP - Email signature generator