Mail Designer 365 - Discover Mail Designer 365, the easiest way to design mobile-optimized HTML emails, templates and newsletter designs. Your HTML email designer for Mac.
Targeted.io - Test your email designs across 30+ clients before you send'm
Really Good Emails - A large collection of good product email design.
Polymail Sequences - Simple, powerful multi-stage email campaigns
Stamplia - High converting and beautifully designed email templates
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!