Horde

Horde is provided by The Horde Project and has been designed with users who need it all in mind. It comes pre-loaded with a full arsenal of features such as advanced productivity tools and mobile email access. The interface is straightforward to understand and allows for quick navigation between all sections you’d expect (inbox, outbox, spam, etc.). Here is a brief overview of some of the features that are available with Horde.

• Attachments
• HTML composition
• Spell check
• Three pane format with view pane
• Mobile interface available
• Address book
• Calendar
• Tasklist
• Event reminders
• Newsfeed
• Notes
• Folder manipulation
• Mail filters
• Message flags
• Search mail
• Threaded conversation view

The above is an example of the user interface for the Horde mail application. If it is very sleek in design, you can see all the additional options and functionality across the top in drop-down menu items.

SquirrelMail

As stated at the start of this article, Squirrelmail is being removed from cPanel in the Version 78 release of cPanel. If you do not see this option, it is not available to you, and you will need to choose between Horde and Roundcube.

SquirrelMail is a no-frills, basic interface email application developed and maintained by The SquirrelMail Project. Designed for users who typically only need to read and reply to emails, SquirrelMail is ideal as a lightweight client that does exactly what you need an email application to do. The following features are presently available in SquirrelMail:

• Two-pane list format
• Attachments
• Text-only composition
• Folder manipulation
• Message flags
• Search mail
• Threaded conversation view
• Address book

The above is an example of the user interface for the SquirrelMail client once selected.  It is very lightweight and simplistic, using only the bare necessities to be as basic and easy to use as possible.

Roundcube

Roundcube is another popular choice for a webmail client. Developed by the Roundcube Webmail Project, Roundcube offers a user-friendly interface with the power of some additional features thrown in. Some of these features include the following.

• Attachments
• HTML composition
• Spell check
• Address book
• System administrators can use plugins to add custom features
• Three-pane format with view pane
• Drag-and-drop organization
• Folder manipulation
• Message flags
• Search mail
• Threaded conversation view

The above image is an example of the user interface you will see when using Roundcube.  While not as flashy and stylized as Horde, it is not as simple and basic as SquirrelMail.  Both the features and the design strike a compromise between the previous two applications.