In plesk, sometimes, after php upgrade if you are getting a blank page for “http://webmail.domian.com”, the following may help you.
Check the apache error logs and if you find any logs similar as following, execute the steps as listed below.
–
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
–
Steps:
1. Copy Webmail VirtualHost entry from “/etc/httpd/conf.d/zz010_psa_httpd.conf” to “/etc/httpd/conf.d/webmail.conf”.
2. Find the “php_admin_value include_path” value from the “/etc/httpd/conf.d/webmail.conf” file.
3. Replace it with following entry:
php_admin_value include_path “/usr/share/psa-horde/lib:/usr/share/psa-horde:/usr/share/psa-horde/pear:.
Note : You should change this value for all “php_admin_value include_path”.
4. Restart apache and plesk services.
Now, access the URL “http://webmail.domian.com”
Cheers !!!