Mailtrim - Email lives forever!. Reinvigorate your emailing experience with the best free email client, the Mailtrim
Loop Email - Emailing for teams: Organize your Inbox into channels 💌
FastMail - Email, calendars, and contacts to highest standards of security, privacy and reliability.
Missive - Team communication app now supporting FB, Twitter & SMS
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
Pingly - Your communication hub — Email, text & voice in one app