Dear Support, We have troubles after the upgrade of our Plesk control panel up to the 9.0.1 version. After the upgrade Plesk has added the configuration file 'zzz_horde_vhost.conf' to the /etc/httpd/conf.d/ directory. Here it is: After that Litespeed will ignore SSL certificates for all of our domains and will replace them with the default Plesk certificate. If I move this file all configuration will be correct. But we have a lot of complaints from our customers, because they are unable to use WebMail client. So, please, advice. Please, respond as soon as possible. Quick respond and fix will be appreciated.