Claws Mail, an email client and news reader, is based on GTK+. It features a quick response, graceful, and intuitive interface, easy configuration and intuitive operation. There are many features, extensibility, robustness, robustness, stability, and extensibility. Both new users and those who have used other email clients in the past will be familiar with the interface. The keyboard allows you to access almost all commands. The standard MH format is used to manage messages. It offers fast access and data security. You can import emails from any email client and export them as well. Extra plugins provide many additional functionality such as an RSS aggregator and calendar or laptop LED handling. Claws Mail is available under the GPL.