Transactional Email Templates by Postmark - Open source email templates for use in your SaaS app.
SaaS Email Templates - Responsive HTML email templates for SaaS startups
Pistachio Email Templates - Delicious newsletter templates built for automation
Email2Go.io - Perfect emails are born here
One Click Email Templates - Enter your URL for 14 branded email templates for free 💌
Sequencer by Close - The email drips top SaaS startups use to win more customers