[RainLoop](https://www.rainloop.net/) is a simple, modern and fast web-based email client. RainLoop source code is hosted on [Github](https://github.com/RainLoop/rainloop-webmail). This guide will show you how to install RainLoop on a fresh FreeBSD 12 Vultr instance. - Web server: Apache, Nginx, lighttpd or other with PHP support. We use Nginx. - PHP version 5.4 and above - PHP extensions: `cURL`, `iconv`, `json`, `libxml`, `dom`, `openssl`, `DateTime`, `PCRE`, `SPL` - Optional: PDO (MySQL......