MailChimp - MailChimp is the best way to design, send, and share email newsletters.
HTMLEmail.io - Responsive HTML email templates for startups & developers
SendOut - Affordable email marketing for bloggers and influencers
Startup Emails - Responsive HTML email templates for startups
rasa.io - Get more from your email list.
Stripo - Stripo is an all-in-one email design platform. We enable our clients to build emails of any complexity, including interactive AMP emails, really fast and easy.