Mailzak - Give a boost to your #EmailMarketing
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!
SendOut - Affordable email marketing for bloggers and influencers
HubSpot Free Email Marketing - Powerful drag and drop email marketing in the HubSpot CRM
Mailblast - Email marketing on a budget using Amazon SES
Quokka (formerly Kryptowire) - The gold standard in SAST, MAST, IAST, and more!