Email Web Clients for Intranet & Corporate – PHP MySQL Based

I prefer avoid working on google products are they are becoming more and more commercial and definitely have privacy concerns.
Google Apps for business, after the major commercialization left many companies no where unless they pay google. Bandwidth, Diskspace & Uptime is not an issue for any corporate intranet website. We just need a slick email client to do a smooth migration.
After little research here are my findings.


Roundcube Webmail is a browser-based multilingual IMAP client with an application-like user interface providing full functionality like MIME support, address book, folder manipulation, searching and spell checking. It’s written in PHP and JavaScript.

There are some plugins available to extend more functions.

1. Three-paned mail view with drag&drop


IMP is currently at version 5 and requires Horde 4. It adds new features like a new mobile frontend for smartphones, much improved AJAX frontend with new vertical layout

version 4

version 5


Gwebmail is an ajax powered webmail system with an interface similar to Gmail
It is entirely written in PHP and uses MySQL to store messages
It comes with fremium model, and 10 users are free.

AtMail Open

Last Update: 2009-07-16

AtMail is an open source webmail client written in PHP. We aim to provide a elegant Ajax webmail client for existing IMAP mailservers, with less bloat and a focus on an intuitive, simple user interface. They also have a commercial version of Atmail. Commercial version interface looks very promising.

Webmail screenshots
AfterLogic WebMail Lite PHP
Last Update: 2011-12-06

Also compare with commercial

  • Supports SMTP/IMAP/POP3/XMail protocols; MySQL or MS SQL database backend
  • Ajax driven interface
  • Can block javascript and external images in e-mails
  • Address Book
  • Skins and translations (including RTL rendering)
  • cPanel integration

Manging the email list


HiveMail now provides even more features and a revamped UI ! Amongst a stunning File Storage implementation which allows to add attachments from/to Storage, we have implemented the world’s firstQuickview / Quickreply System – a really slick and easy way to view/reply messages !


Last Update: 2012-08-20

Hastymail is a fast, secure, rfc-compliant, cross-platform IMAP/SMTP client application written in PHP providing a clean web interface for sending and reading E-mail.
Mailbox view with the default theme

T-dah WebMail

Beta Last Update: 2012-08-27

T-dah webmail project based on uebimiau with new updates, template skins, filters, chat and calendar. T-dah Webmail is small, efficient, very easy to install and is always being improved.



Last Update: 2011-09-19

SquirrelMail is a PHP-based Web email client. It includes built-in pure PHP support for IMAP and SMTP, and renders all pages in pure HTML 4.0 for maximum compatibility across browsers. It has strong MIME support and a flexible plugin system. Interface looks old age of 1960s. But provide ensignia (following) better themes for it. Comments says code structure is good to incorporate and customize.

Advanced tree and icons (sm 1.5.1)
Advanced tree and icons (sm 1.5.1)


SquirrelOutlook is a standards-based webmail package written in PHP4 (Squirrelmail). It includes built-in pure PHP support for the IMAP and SMTP protocols, and all pages render in pure HTML 4.0 for maximum compatibility across browsers.

Message List

Emexis-webmail skin squirremail
emexis-webmail is a skin for the well-known Squirremail The intention of this project is to create more friendly interface for the End User

Layout Limpo

Ensignia (Powered by Squirrelmail)

Another squirrelmail fork, but commerical.

Last Update: 2012-08-14

NOCC is a simple and fast Webmail client which can handle POP3, SMTP, and IMAP servers. It is written with PHP5 (uses sessions), has low requirements (no database, frames). Features multi-language support, MIME attachments, displays HTML messages.

Inbox window

There were few others like popper, v-webmail etc, but were of very low quality interface so i skipped them in this extract.

Hope it is useful for businesses.


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