Originally posted by phoenixisp
To change the "Welcome to Horde" line, edit the /etc/psa-horde/horde/registry.php file. Look for the line that starts with name=. Change the entire line to
'name' => _(preg_replace('/^webmail./', '', $GLOBALS['HTTP_SERVER_VARS']['SERVER_NAME']) ),
To change the theme (skin) edit the /etc/psa-horde/horde/prefs.php file on line 292. I use "simplex" it's softer: