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Installing MIMP

Last update:2008-06-21

This document contains instructions for installing the MIMP web-based mail client on your system.

For information on the capabilities and features of MIMP, see the file README in the top-level directory of the MIMP distribution.

1   Obtaining MIMP

MIMP can be obtained from the Horde website and FTP server, at

Or use the mirror closest to you:

Bleeding-edge development versions of MIMP are available via CVS; see the file docs/HACKING in the Horde distribution, or the website, for information on accessing the Horde CVS repository.

2   Prerequisites

To function properly, MIMP REQUIRES the following:

  1. A working IMP installation.

    MIMP runs on top of IMP. Therefore, you will need to set-up IMP before you can install MIMP. Please see the imp/docs/INSTALL file in IMP for directions on how to install IMP properly.


    MIMP requires the Horde Framework version 3.2+ and IMP version 4.2+ to run. Although not necessary, it is STRONGLY RECOMMENDED that you always upgrade IMP to the latest version when upgrading MIMP since any bug fixes to the core libraries occur there.

3   Installing MIMP

MIMP is written in PHP, and must be installed in a web-accessible directory. The precise location of this directory will differ from system to system. Conventionally, MIMP is installed directly underneath Horde in the web server's document tree.

Since MIMP is written in PHP, there is no compilation necessary; simply expand the distribution where you want it to reside and rename the root directory of the distribution to whatever you wish to appear in the URL. For example, with the Apache web server's default document root of /usr/local/apache/htdocs, you would type:

cd /usr/local/apache/htdocs/horde
tar zxvf /path/to/mimp-1.0.tar.gz
mv mimp-1.0 mimp

and would then find MIMP at the URL:


4   Configuring MIMP

  1. Configuring Horde for MIMP

    1. Register the application

      In horde/config/registry.php, find the applications['mimp'] stanza. The default settings here should be okay, but you can change them if desired. If you have changed the location of MIMP relative to Horde, either in the URL, in the filesystem or both, you must update the fileroot and webroot settings to their correct values.

    2. Enable IMP authentication [OPTIONAL]

      See IMP's imp/docs/INSTALL file for details.

  2. Configuring MIMP.

    To configure MIMP, change to the config/ directory of the installed distribution, and make copies of all of the configuration dist files without the dist suffix:

    cd config/
    for foo in *.dist; do cp $foo `basename $foo .dist`; done

    Or on Windows:

    copy *.dist *.

    Documentation on the format and purpose of those files can be found in each file. You may edit these files if you wish to customize MIMP's appearance and behavior. With two exceptions (conf.php and servers.php) the defaults will be correct for most sites.

    You must be sure to list your IMAP/POP3 server names and configuration information in servers.php (unless you demand that the user specify his own at login).

    You must login to Horde as a Horde Administrator to finish the configuration of MIMP. Use the Horde Administration menu item to get to the administration page, and then click on the Setup icon to get the configuration page. Select Mobile Mail from the selection list of applications. Fill in or change any configuration values as needed. When done click on Generate Mobile Mail Configuration to generate the conf.php file. If your web server doesn't have write permissions to the MIMP configuration directory or file, it will not be able to write the file. In this case, go back to Setup and choose one of the other methods to create the configuration file mimp/config/conf.php.

    Note for international users: MIMP uses GNU gettext to provide local translations of text displayed by applications; the translations are found in the po/ directory. If a translation is not yet available for your locale (and you wish to create one), see the horde/po/README file, or if you're having trouble using a provided translation, please see the horde/docs/TRANSLATIONS file for instructions.

  3. Securing MIMP

    Before you can secure MIMP, you need a secure Horde installation. Please read the file in horde/docs/SECURITY for Horde security information before proceeding.

    See IMP's imp/docs/INSTALL file for further details on how to secure IMP/MIMP.

  1. Tuning MIMP (Performance)

    See horde/docs/PERFORMANCE.

5   Obtaining Support

If you encounter problems with MIMP, help is available!

The Horde Frequently Asked Questions List (FAQ), available on the Web at

The Horde Project runs a number of mailing lists, for individual applications and for issues relating to the project as a whole. Information, archives, and subscription information can be found at

Lastly, Horde developers, contributors and users may also be found on IRC, on the channel #horde on the Freenode Network (

Please keep in mind that MIMP is free software written by volunteers. For information on reasonable support expectations, please read

Thanks for using MIMP!

The MIMP team