Polymail - Native email app for email productivity.
MailChimp Snap - Send simple, photo-based email campaigns from your phone.
Airmail - Airmail is a lightweight and lightning fast mail client for Mac.
Polymail Sequences - Simple, powerful multi-stage email campaigns
Spark Mail - Spark helps you take your inbox under control. Instantly see what’s important and quickly clean up the rest. Spark for Teams allows you to create, discuss, and share email with your colleagues
Campaign Genius - Send dynamic email content through any platform, instantly.