MailChimp - MailChimp is the best way to design, send, and share email newsletters.
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!
Elastic Email - Elastic Email is an all-in-one email delivery platform for both marketing and transactional email.
HubSpot Free Email Marketing - Powerful drag and drop email marketing in the HubSpot CRM
Zoho Campaigns - Smart email marketing software that helps you reach your target audiences, engage in a personalized way, and grow your brand presence.
Quokka (formerly Kryptowire) - The gold standard in SAST, MAST, IAST, and more!