A container that has
sendmail packages installed simultaneously cannot be updated, the operation fails with the following errors:
[root@vz ~] vzpkg update $CTID Error: plesk-mail-qc-driver conflicts with plesk-mail-pc-driver Error: plesk-mail-pc-driver conflicts with plesk-mail-qc-driver Error: plesk-mail-pc-driver conflicts with psa-qmail Error: plesk-mail-pc-driver conflicts with psa-qmail-rblsmtpd You could try using --skip-broken to work around the problem You could try running: package-cleanup --problems package-cleanup --dupes rpm -Va --nofiles --nodigest The program package-cleanup is found in the yum-utils package. Error: /usr/share/vzyum/bin/yum failed, exitcode=1
The behavior is recognized as a product bug with internal ID PPPM-1081.
A Plesk installation is capable of keeping only one mail server installation, so it is not advised to install any other mail servers manually.
Remove sendmail packages:
# rpm -e sendmail-doc sendmail-cf sendmail --nodeps
After this, the update procedure should go smoothly.