MailTime - Go through your email as fast and easy as text-messaging

Mailbutler - Mailbutler adds lacking functionality to email clients and increases your productivity

myMail - myMail is the smart email app for managing all your accounts on iOS and Android.

Thunderbird - Thunderbird is a free email application that's easy to set up and customize - and it's loaded with great features!

K-9 Mail - K-9 is an opensource email client making it easy to chew through large volumes of email.

Microsoft Outlook - Organize your world. Outlook’s email and calendar tools help you communicate, stay on top of what matters, and get things done.