HubSpot Free Email Marketing - Powerful drag and drop email marketing in the HubSpot CRM
Elevatr Email Marketing Automation - Fast and easy email marketing software
Grade My Email - Helps you get out of the spam folder.
Google Sheets Email Marketing - Email automation and validations directly from Google Sheets
GMass - GMass allows you to easily schedule emails, send out mass emails and mail merge campaigns and more with Gmail! Click here to learn about more features!
Email Marketing Academy from MailerLite - Learning platform for email marketing expert certification