“SIMPLE, MODERN, AND FAST” – this is RainLoop’s webmail strong points over other web-based mail clients, according to its developers and maintainers. RainLoop is a web-based email client that provides a fresh, modern design, fast performance, hassle-free installation and upgrades, and many more features, including:
- Administrator panel
- Emails are accessed directly and not stored on the server
- Support for modern mail security protocols
- Facebook, Twitter, Google, and Dropbox integration capabilities
- Drag-and-Drop enabled interface
- Configurable cache system
RainLoop is developed using PHP, and it supports Nginx as the main web server. It provides an open-source (community edition) and a premium version (standard edition). The community edition is licensed under the GNU Affero General Public License v3.
In this blog post, we will show you how to install RainLoop Webmail on a CentOS 7 VPS.


and includes many built-in features, such as handling blogs, using XHTML syntax for entries, adding pages, and so on. It also supports several database types, such as MySQL, PostgreSQL, and SQLite. In this tutorial, we will show you how to install Dotclear on an 




