Maily McMailFace - Dead-simple, people-centric 👩💼👨💼 mail app 💌
Polymail - Native email app for email productivity.
New Gmail - The new version of Gmail web
Mail Pilot - Beautiful task oriented email client for Mac, iPhone, & iPad
Airmail for iOS - One of the best Mac email clients, now on iPhone
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