Gammadyne Clyton - Clyton is an email client with advanced security and spam filtering features.
PopTrayU - Have you fallen in love with the fabulous email notifier program Poptray, but you're running a...
Microsoft Outlook - Organize your world. Outlook’s email and calendar tools help you communicate, stay on top of what matters, and get things done.
Checker Plus for Gmail - Displays new emails and the sender's contact photo, get notifications or even listen, read or...
The Bat - The Bat! is a secure desktop email client for Windows, designed to protect your correspondence against third-parties and to save your time.
Gmail Notifier (restartless) - is a highly customizable browser extension that notifies you about the incoming emails from all your Google-Mail accounts and labels. Gmail notifier is available for Firefox, Chrome, Opera and Safari.