Installing error

[Niels]

Hi, when i'm installing Plesk 7.5 reloaded on Ubuntu i got this error: (I have aleary installed Xampp (PHP, MySQL, Apache))

===> Installing Qmail server
Configuring Qmail...
Trying to define super-server internet daemon type...
ERROR while trying to define super-server internet daemon type
Check the error reason(see log file: /tmp/psa-qmail.log), fix and try again

Aborting...

dpkg: error processing psa-qmail (--configure):
subprocess post-installation script returned error exit status 1
dpkg: dependency problems prevent configuration of mailx:
mailx depends on postfix | mail-transport-agent; however:
Package postfix is not installed.
Package mail-transport-agent is not installed.
Package psa-qmail which provides mail-transport-agent is not configured yet.
dpkg: error processing mailx (--configure):
dependency problems - leaving unconfigured
dpkg: dependency problems prevent configuration of mysql-server:
mysql-server depends on mailx; however:
Package mailx is not configured yet.
dpkg: error processing mysql-server (--configure):
dependency problems - leaving unconfigured
Errors were encountered while processing:
psa-qmail
mailx
mysql-server
E: Sub-process /usr/bin/dpkg returned an error code (1)

 

[Niels]

Can anyone help?

 

[Niels]

Wich topic?