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Error by installing postfix via Updater

ehrenwert

Basic Pleskian
Hi there,

I just tried to install postfix via the updater.

Unfortunately I get the following error:

Code:
Installation started in background

Getting bootstrapper packages to installation list:
 skip package 'pp11.0.9-bootstrapper-11.0.9-cos6.build110120608.16.x86_64' from component base - there is same or newer version of this package is installed (in system pp11.0.9-bootstrapper-11.0.9-cos6.build110120608.16.x86_64)
 skip package 'pp11.0.9-bootstrapper-11.0.9-cos6.build110120608.16.x86_64' from component postfix - there is same or newer version of this package is installed (in system pp11.0.9-bootstrapper-11.0.9-cos6.build110120608.16.x86_64)
Following bootstrapper packages will be installed: (empty)
 ----------------

Getting packages to installation list:
 skip package 'plesk-base-11.0.9-cos6.build110120608.16.x86_64' from component base - there is same or newer version of this package is installed (in system plesk-base-11.0.9-cos6.build110120608.16.x86_64)
 skip package 'plesk-core-11.0.9-cos6.build110120608.16.x86_64' from component base - there is same or newer version of this package is installed (in system plesk-core-11.0.9-cos6.build110120608.16.x86_64)
 skip package 'plesk-l10n-11.0.9-cos6.build110120827.16.noarch' from component base - there is same or newer version of this package is installed (in system plesk-l10n-11.0.9-cos6.build110120827.16.noarch)
 skip package 'plesk-skins-11.0.8-12051419.noarch' from component base - there is same or newer version of this package is installed (in system plesk-skins-11.0.8-12051419.noarch)
 skip package 'psa-11.0.9-cos6.build110120608.16.x86_64' from component base - there is same or newer version of this package is installed (in system psa-11.0.9-cos6.build110120608.16.x86_64)
 skip package 'psa-awstats-configurator-11.0.9-cos6.build110130401.15.noarch' from component base - there is same or newer version of this package is installed (in system psa-awstats-configurator-11.0.9-cos6.build110130401.15.noarch)
 skip package 'psa-libpam-plesk-11.0.9-cos6.build110120608.16.x86_64' from component base - there is same or newer version of this package is installed (in system psa-libpam-plesk-11.0.9-cos6.build110120608.16.x86_64)
 skip package 'psa-locale-base-en-US-11.0.9-cos6.build110120911.11.noarch' from component base - there is same or newer version of this package is installed (in system psa-locale-base-en-US-11.0.9-cos6.build110120911.11.noarch)
 skip package 'psa-logrotate-3.7-cos6.build110120606.19.x86_64' from component base - there is same or newer version of this package is installed (in system psa-logrotate-3.7-cos6.build110120606.19.x86_64)
 skip package 'psa-mod-fcgid-configurator-2.0.0-cos6.build110120606.19.x86_64' from component base - there is same or newer version of this package is installed (in system psa-mod-fcgid-configurator-2.0.0-cos6.build110120606.19.x86_64)
 skip package 'psa-mod_aclr2-12021319-9e86c2f.x86_64' from component base - there is same or newer version of this package is installed (in system psa-mod_aclr2-12021319-9e86c2f.x86_64)
 skip package 'psa-mod_fcgid-2.3.6-12050315.x86_64' from component base - there is same or newer version of this package is installed (in system psa-mod_fcgid-2.3.6-12050315.x86_64)
 skip package 'psa-mod_rpaf-0.6-12021310.x86_64' from component base - there is same or newer version of this package is installed (in system psa-mod_rpaf-0.6-12021310.x86_64)
 skip package 'psa-proftpd-1.3.4a-cos6.build110120606.19.x86_64' from component base - there is same or newer version of this package is installed (in system psa-proftpd-1.3.4a-cos6.build110120606.19.x86_64)
 skip package 'psa-pylibplesk-11.0.9-cos6.build110120608.16.x86_64' from component base - there is same or newer version of this package is installed (in system psa-pylibplesk-11.0.9-cos6.build110120608.16.x86_64)
 skip package 'psa-selinux-11.0.9-cos6.build110120905.17.noarch' from component base - there is same or newer version of this package is installed (in system psa-selinux-11.0.9-cos6.build110120905.17.noarch)
 skip package 'psa-triggers-11.0.9-cos6.build110120608.16.noarch' from component base - there is same or newer version of this package is installed (in system psa-triggers-11.0.9-cos6.build110120608.16.noarch)
 skip package 'psa-updates-11.0.9-cos6.build110120704.10.noarch' from component base - there is same or newer version of this package is installed (in system psa-updates-11.0.9-cos6.build110120704.10.noarch)
 skip package 'psa-vhost-11.0.9-cos6.build110120606.19.noarch' from component base - there is same or newer version of this package is installed (in system psa-vhost-11.0.9-cos6.build110120606.19.noarch)
autoinstaller: read output of env LANG=C LC_ALL=C yum info psa 2>/dev/null with popen
autoinstaller: pclose OK
 skip keypackage 'psa-11.0.9-cos6.build110120608.16.x86_64' from component base - same or newer version of this package is already installed (in system psa-11.0.9-cos6.build110120608.16.x86_64)
 skip package 'postfix-2:2.8.4-12052415.x86_64' from component postfix - there is same or newer version of this package is installed (in system postfix-2:2.8.4-12052415.x86_64)
 skip package 'psa-courier-imap-3.0.8-cos6.build110120606.19.x86_64' from component postfix - there is same or newer version of this package is installed (in system psa-courier-imap-3.0.8-cos6.build110120606.19.x86_64)
 skip package 'psa-mail-driver-common-11.0.9-cos6.build110120608.16.x86_64' from component postfix - there is same or newer version of this package is installed (in system psa-mail-driver-common-11.0.9-cos6.build110120608.16.x86_64)
autoinstaller: read output of env LANG=C LC_ALL=C yum info psa-mail-pc-driver 2>/dev/null with popen
pclose error: Success
Execution of 'yum' failed - exit code not zero
Error: autoinstaller: Error in execution of yum

Warning: key package psa-mail-pc-driver is not available
autoinstaller: read output of env LANG=C LC_ALL=C yum info postfix 2>/dev/null with popen
autoinstaller: pclose OK
 skip keypackage 'postfix-2:2.8.4-12052415.x86_64' from component postfix - same or newer version of this package is already installed (in system postfix-2:2.8.4-12052415.x86_64)
Following packages will be installed: plesk-mail-pc-driver-11.0.9-cos6.build110120608.16.x86_64 
 ----------------
[plesk-mail-pc-driver.x86_64 0:11.0.9-cos6.build110120608.16 - u]

Attempt to remove 'plesk-mail-qc-driver' to resolve conflict has succeeded
Attempt to remove 'psa-qmail-rblsmtpd-0.88-cos6.build110120606.19.x86_64' to resolve conflict has failed
Attempt to remove 'plesk-mail-qc-driver-11.0.9-cos6.build110120608.16.x86_64' to resolve conflict has failed
Attempt to remove '2:psa-qmail-1.03-cos6.build110120606.19.x86_64' to resolve conflict has failed
[plesk-mail-qc-driver.x86_64 0:11.0.9-cos6.build110120608.16 - e]
[plesk-mail-pc-driver.x86_64 0:11.0.9-cos6.build110120608.16 - u]

Attempt to remove 'psa-qmail-rblsmtpd-0.88-cos6.build110120606.19.x86_64' to resolve conflict has failed
Attempt to remove '2:psa-qmail-1.03-cos6.build110120606.19.x86_64' to resolve conflict has failed
[plesk-mail-qc-driver.x86_64 0:11.0.9-cos6.build110120608.16 - e]
[plesk-mail-pc-driver.x86_64 0:11.0.9-cos6.build110120608.16 - u]

Attempt to remove 'psa-qmail-rblsmtpd-0.88-cos6.build110120606.19.x86_64' to resolve conflict has failed
Attempt to remove '2:psa-qmail-1.03-cos6.build110120606.19.x86_64' to resolve conflict has failed
[plesk-mail-qc-driver.x86_64 0:11.0.9-cos6.build110120608.16 - e]
[plesk-mail-pc-driver.x86_64 0:11.0.9-cos6.build110120608.16 - u]

Attempt to remove 'psa-qmail-rblsmtpd-0.88-cos6.build110120606.19.x86_64' to resolve conflict has failed
Attempt to remove '2:psa-qmail-1.03-cos6.build110120606.19.x86_64' to resolve conflict has failed
[plesk-mail-qc-driver.x86_64 0:11.0.9-cos6.build110120608.16 - e]
[plesk-mail-pc-driver.x86_64 0:11.0.9-cos6.build110120608.16 - u]

Attempt to remove 'psa-qmail-rblsmtpd-0.88-cos6.build110120606.19.x86_64' to resolve conflict has failed
Attempt to remove '2:psa-qmail-1.03-cos6.build110120606.19.x86_64' to resolve conflict has failed
Traceback (most recent call last):
 File "/usr/local/psa/bin/yum_install", line 194, in <module>
 main()
 File "/usr/local/psa/bin/yum_install", line 180, in main
 inst, rem = installer.resolve(to_install, opts.remove)
 File "/usr/local/psa/bin/yum_install", line 130, in resolve
 raise Exception("Failed to solve dependencies:\n" + '\n'.join(msgs))
Exception: Failed to solve dependencies:
plesk-mail-pc-driver conflicts with psa-qmail-rblsmtpd-0.88-cos6.build110120606.19.x86_64
plesk-mail-pc-driver conflicts with 2:psa-qmail-1.03-cos6.build110120606.19.x86_64
Error: Das Dienstprogramm Yum konnte nicht die erforderlichen Pakete installieren.
Achtung! Ihre Software ist vielleicht nicht betriebsbereit.
Bitte kontaktieren Sie den technischen Produktsupport.

How can I solve that? OS is CentOS 6 64bit.
 
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