MJML - The open source framework for responsive emails
Microsoft Outlook - Organize your world. Outlook’s email and calendar tools help you communicate, stay on top of what matters, and get things done.
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.
Fantastical 2 - Fantastical, the Mac calendar app you'll enjoy using. Quickly create new events with natural language input and more.
Templates by Email Monster - Hundreds of free, responsive email templates. Pick and edit.
Simple Calendar - A simple calendar with events (optional recurring and reminders), week numbers and a customizable...