| Developer(s) | The Horde Core Team |
|---|---|
| Stable release | H4 (5.0) / April 5, 2011 |
| Operating system | Cross-platform |
| Type | Webmail |
| License | GNU General Public License |
| Website | http://www.horde.org/imp/ |
The Internet Messaging Program or IMP is an open source PHP-based webmail client for IMAP. IMP is a component of the Horde project.
It is included with cPanel and Plesk installations as a webmail client. It often integrates email, calendar, address book, notes, tasks, filters and a newsreader with cPanel.