Multiple label and account notifier for Google Mail (Gmail) Checker for Gmail is an open-source project that notifies you about incoming emails from all your Gmail accounts and labels. Features: 1. No requirement to enter your credentials. 2. Multiple account support 3. Multiple label support 4. Low bandwidth usage by using RSS technology 5. Mark as read, report spam, trash or archive messages right from browser's toolbar 6. Open email in gmail for further processing if needed