Email address does not work after Plesk upgrade. Webmail shows the following error in web browser:
500 Internal server Error.
The following can be found in
[core:alert] [pid 4311] [client 18.104.22.168:39976] /usr/share/psa-horde/.htaccess: <IfModule not allowed here
The issue is caused by misconfiguration of the Apache Rewrite Engine.
For Apache 2.4:
Make sure that Apache are properly enabled: using article #125735
For Apache 2.2:
To fix the issue it is needed to add AllowOverride All rule to the
/etc/apache2/plesk.conf.d/horde.conf file under Directory section.
The Directory section should look as the following:
<Files ~ (\\.php$)>
FCGIWrapper /var/www/cgi-bin/cgi_wrapper/cgi_wrapper .php
Allow from all