Templates by Email Monster - Hundreds of free, responsive email templates. Pick and edit.
Birdly - Birdly is an expense management and expense report solution for SMBs.
SaaS Email Templates - Responsive HTML email templates for SaaS startups
PushMarket - Automate personalized emails for ecommerce (YC15)
Email Template Generator - Email templates for your important relationships
Dynamic Campaigns by Sigstr - Share the most relevant content in every email