So heute habe ich es mir noch richtig gegeben und habe den Server dann auch gleich noch mit der Plesk Version 8.2.1 upgedated:

Changelog
[*] Security improvements and bugfixes
[*] Upgrade procedure improvements
[-] Several autoinstller utility bugs with packages checking and mirroring have been resolved
[-] Several selinux configuration issues have been resolved.
[-] Several Backup and Migration bugs have been fixed.
[-] Issue with mail stucked in qmail-queue is resolved.
[-] Issue with sending notifications about domain expiration by statistics utility is resolved.
[-] Issue with permanent Spamassassin restarting by Watchdog is resolved.
[-] Problem with incorrect message(„Management of parent node is forbidden“) after domain deletion is resolved.
[-] Issue with mailling lists with dot symbols is resolved
[-] Issue with php safe mode management by client is resolved.
[-] Issue with incorrect php dependences of ‚coppermine‘ and ‚gallary‘ packages is resolved.
[-] Several issues with MySQL packages from mysql.com compatibility have been resolved.
[-] Issue with mysqldump.sh utility is resolved.

Alles ohne weitere Probleme.