Email Template Generator - Email templates for your important relationships
Templates by Email Monster - Hundreds of free, responsive email templates. Pick and edit.
Pistachio Email Templates - Delicious newsletter templates built for automation
SaaS Email Templates - Responsive HTML email templates for SaaS startups
Great Email Copy - A dose of emails from around the web.
Transactional Email Templates by Postmark - Open source email templates for use in your SaaS app.