InboxVudu - Spend 90% less time on e-mail.
Minimize Email - Anonymously tell coworkers when they send too many emails 🙊
Asana - Asana project management is an effort to re-imagine how we work together, through modern productivity software. Fast and versatile, Asana helps individuals and groups get more done.
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
Mailbutler - Mailbutler adds lacking functionality to email clients and increases your productivity
MailTime - Go through your email as fast and easy as text-messaging