
Thunderbird
Manage your calendar, contacts, and email inbox with a free client from Mozilla

HCL Notes
An email client built for enterprises that includes a large email server, messenger application and more

Mailbird
A high-performance desktop email clients for GMail and Microsoft Exchange users on Windows

eM Client
Email client packaged with other helpful features such as tasks, calendars, notes, chat, and more

Amazon WorkMail
A combined calendar and email program that helps you function efficiently

Airmail
A high-performance, streamlined email client with advanced spam filtering features for Apple smartphones, tablets, and laptops

Zimbra Desktop
Open source email solution for managing all email accounts in one fully-featured app

K-9 Mail
A leading open-source email client designed to save you time by letting you process your inbox in bulk

Mailspring
Easy-to-use email client that works in Windows, Mac, and Linux environments

BlackBerry Hub+
Android organization and consolidation app that includes many intuitive features and shortcuts for business productivity