Issue :

Horde webmail screen of a domain is displaying a blank screen.

Cause :

May be due to recent PHP upgrade. You may find the following entries in error log (/etc/httpd/logs/error_log)


PHP Fatal error: require_once() [function.require]: Failed opening required ‘Horde/String.php’ (include_path=’/usr/share/psa-horde:/usr/share/psa-horde/pear:.’) in /usr/share/psa-horde/lib/Horde/Browser.php on line 4


Fix :

Edit /etc/httpd/conf.d/zz010_psa_httpd.conf
Replace all occurance of
php_admin_value include_path “/usr/share/psa-horde:/usr/share/psa-horde/pear:.”
php_admin_value include_path “/usr/share/psa-horde/lib:/usr/share/psa-horde:/usr/share/psa-horde/pear:.”

Restart Apache

Reference :

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