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RainLoop is a free webmail application based on PHP, it’s free and open source, has modern user interface to handle large number of email accounts without the need of any database connectivity, besides non database connectivity it holds both SMTP and IMAP protocols to easily send/receive emails without any trouble.

RainLoop Key Features

  • Modern : Modern user interface, with drag’n’drop of files, progress bar for file uploading, browser notifications, embed images into messages, keyboard shortcuts, multi-language mails, etc.
  • Technological : Supports all latest mail server protocols, such as SMTP and IMAP. Multi-level caching engine allows for increasing performance of application and reducing load on mail and server.
  • Customizable : Highly customization options to customize interface layout using visual themes and support for multi-language interface, with new languages easily added.
    Social : Integration with Facebook, Google and Twitter enables users to log-in with their social network credentials.
  • Simplicity : Provides easy way to installing and upgrading RainLoop application without any technical skills. The built-in upgrade tool allows users to easily obtain new version and plugins from a single click via admin interface.
  • Security : Built-in protection module clears hazardous HTML entities for preventing several attacks. In addition, token-based security engine is used for protection from CSRF attacks.
  • Extensibility : Plugin system provides several features like changing password, global address, compose screen, keeping user settings in database, etc are easily integrated into application.
  • Performance : The application well designed with efficient memory use in mind, so it can work smoothly even on low-end servers. But still in most cases, the performance and speed of application directly depends on performance of server and bandwidth available.

Requirement of RainLoop

In order to install RainLoop application we require:

  • GNU/Linux operating system
  • Apache web server
  • PHP version 5.3 or higher
  • PHP Extensions

RainLoop Demo and Preview

Watch Demo of application – http://demo.rainloop.net/

RainLoop Webmail Demo 1

RainLoop Webmail Demo 2

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Testing Environment

Operating System – CentOS 6.5 & Ubuntu 13.04
Apache – 2.2.15
PHP – 5.5.3
RainLoop – 1.6.3.715


Installation of RainLoop Webmail in Linux

As I mentioned earlier, that RainLoop Webmail is developed in PHP for Linux with Apache. So, you must have a running Web server with PHP installed on the system along with PHP modules such as cURL, ibxml, dom, openssl, DateTime, PCRE, etc. To install these all required packages, you can use package manager tool called yum or apt-get according to your Linux distribution.

Step 1: Install Apache, PHP and MySQL

Install on Red Hat based systems using yum command.

Install on Debian based systems using apt-get command.

Step 2: Download and Install RainLoop Webmail

Now go the official RainLoop site and download the latest source tarball (i.e version 1.6.3.715) using below link.

http://rainloop.net/downloads/

Alternatively, you may also use following ‘wget‘ command to download the latest source package and extract it to a Apache web root directory. For example, ‘/var/www/rainloop‘ or ‘/var/www/html/rainloop‘.

On Red Hat based Systems

On Debian based Systems

Note: You can also download the latest version of RainLoop application without a need to deal with zip archive, just use the following command in your terminal.

Step 3: Configure Permissions

After, extracting the package content, be sure to set correct permissions for the files and directories before installing the product. This is necessary to have running application with its default configuration. This is also mandatory, when dealing manual upgrade or restoring from backup. Please switch to application directory i.e. ‘/var/www/rainloop‘ or ‘/var/www/html/rainloop‘ and execute following commands thereon.

Now, set owner for the application recursively.

Note: Depending on specific Linux distribution, user account for web server runs may vary (apache, www, www-data, nobody, nginx, etc.).

Step 4: Configure RainLoop via Admin Interface

There are two ways to configure the RainLoop application – using admin panel, or by modifying ‘application.ini‘ file manually from the terminal. But, most of the basic options are configured via web interface, and that should suffix in most cases. To access admin panel, use the following default login credentials.

URL : http://Your-IP-Address/rainloop/?admin
User : admin
Pass : 12345

Admin Login

RainLoop-Webmail-Login

Change Admin Password

Once, you logged-in it’s recommended to change the default password to protect the application from the malicious attacks.

Change-Default-Password

Set-Password

Branding

You can customize your login screen by adding custom Titles, Descriptions and path to Logo.

Branding

Enable Contacts

To enable contacts feature, we need to use supported database. Here, we will be using MySQL as database for enabling contacts. So, create the database manually using the following commands on the terminal.

Now enable the contacts feature from the Admin Panel –> Contacts page.

Contacts

Plugins – Enable Password Changing

This plugin add functionality to change the email account password. To enable this plugin, you need to install a package called ‘poppassd‘ on the server.

On Red Hat based systems, you need to download and enable Razor’s Edge Repository for your specific distribution and then install the ‘poppassd’ package using the following command.

Next, go to the Admin Panel –> Package section to install plugin.

Poppasswd-Plugin

Enable, the poppassd plugin from the Admin Panel > Plugins page and tick the ‘poppassd-change-password‘ box. Add the server details such 127.0.0.1, Port 106 and enter ‘*‘ for Allowed emails.

Enable-Poppasswd-Plugin

Social

Integration with Facebook, Google and Twitter enables users to log-in using social network credentials. The Dropbox integration enables users to attach files from their dropbox storage.

To enable social integration, go to Admin Panel –> Social tab, and add appropriate fields for specific social networks. For more detailed instructions on social integration can be found at http://rainloop.net/docs/social/.


Reference Links

RainLoop Homepage

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