Apps similar to Mail Notifier include Checker Plus for Gmail, which is free. Other options are Notifier for Gmail and Gmail Notifier (gmailnotifier.com). In total there are three apps like Mail Notifier for Windows, Mac and Linux.
Displays new emails, sender's contact photo, and notifications, and allows the user to listen, read or delete emails without opening Gmail! Supports multiple accounts plus and provides many other tools.
Canada
Gmail™ Notifier is an open-source project that notifies you about incoming emails from all your Google Mail accounts and labels.
Gmail Notifier alerts the users of new email messages. Users can also read emails, delete or mark them as read, all without having to open a browser.
