Latest News

  • 2008-07-31: The first release candidate for IMP H3 (4.2.1-RC1) has been released.
  • 2008-07-10: A feature to attach personal contact information to outgoing messages has been added and will be available with IMP H3 (4.2.1).
  • 2008-06-30: The folder list generation has been much improved and sped up. These changes should also fix some namespace issues that some people have seen with Courier and Dovecot servers.
  • 2008-06-27: A mailto: handler for Firefox 3 has been added for IMP H3 (4.2.1). This handler can be installed similar to a Firefox extension and makes the browser opening IMP's compose window when clicking a linked email address in any webpage.
  • 2008-05-25: The final release of the IMP Webmail Client H3 (4.2) is available.

Stable Releases

Development Releases

Open Requests

IMP Webmail Client

Versions: 4.2 | 4.1 | 4.0 | 3.2 | 3.1 | 3.0 | 2.2

IMP is the Internet Messaging Program. It is written in PHP and provides webmail access to IMAP and POP3 accounts.

There are several current branches of IMP. IMP 4.2.x is the current production version of the stable branch. It requires PHP 4.3.0 and version 3.x of the Horde framework. It adds new features like crypting support, flexible charset handling, virtual folders for saved searches, a WYSIWYG editor for creating HTML messages, improved MIME message handling, and many more.

IMP 3.2.8 is the latest production version of the previous stable branch. It requires PHP 4.1.0 and version 2.0 of the Horde framework. It adds advanced features such as searching multiple mailboxes, identities, and a hierarchical mailbox navigator, as well as a cleaner, redesigned user interface. As with IMP 2.2 before it, it passes the "MIME Torture Test" that UW makes available.

Feel free to view (or add) documentation on IMP on the IMP Wiki Page.