From Linuxintro

Horde is a mail user agent that allows you to set up your own webmail service.

Install it

Here is an example how to install it. It uses apache2 on SUSE Linux 11.2, other combinations should work same or similar. It installs horde on the local host

yast -i php5-gettext php5-imap
/etc/init.d/apache2 restart
cd /srv/www/htdocs
wget http://ftp.horde.org/pub/horde-webmail/horde-webmail-1.2.5.tar.gz
tar xvzf horde-webmail-1.2.5.tar.gz
  • change the folder name to horde
mv horde-webmail-1.2.5 horde
tweedleburg:/srv/www/htdocs/horde/config # cp conf.php.dist conf.php
tweedleburg:/srv/www/htdocs/horde # php scripts/setup.php 
Horde Groupware Webmail Edition Configuration Menu 
    (0) Exit                                       
    (1) Configure database settings                
    (2) Create database or tables                  
    (3) Configure administrator settings           
    (4) Update PEAR for a new or changed location  
    (5) Update from an older Horde Groupware Webmail Edition version
you will need to execute 1, 2, 3 and 0.

See also