This does not apply to my case. I had never installed the web-mail modules. Actualy I don't have any possibility to access my email.
Webaccess/Webapp:
Not Found: PHP mapi extension not found
If you have upgraded zarafa, please restart Apache
Zarafa WebApp can't start because of incompatible configuration.
Please correct above errors, a good start is by checking your '/etc/php5/apache2/php.ini' file.
Or if you wish, you can disable this config check by editing the file '/usr/share/zarafa-webapp/config.php', but this is not recommend.
And devices using z-push can't login:
22/12/2013 10:26:34 [10805] [FATAL] [username] FatalMisconfigurationException: PHP-MAPI extension is not available - code: 0
I just don't like to install everything again