Article ID: 121554, created on May 13, 2014, last review on May 13, 2014

  • Applies to:
  • Plesk 11.5 for Linux


Unable to send / receive mail. The following error can be observed in the /usr/local/psa/var/log/maillog:

Aug  1 10:13:23 website postfix/master[4989]: daemon started -- version 2.6.6, configuration /etc/postfix
Aug  1 10:36:48 website courier-authdaemon: modules="authpsa ", daemons=5
Aug  1 10:36:48 website courier-authdaemon: Installing libauthpsa
Aug  1 10:36:48 website courier-authdaemon: file not found


The library file is missing.


The library belongs to the psa-mail-driver-common package

# rpm -qvV psa-mail-driver-common | grep
.........    /usr/lib64/courier-authlib/

To fix the issue

  1. Download psa-mail-driver-common package corresponding to the operation system from the

    Here is example for CentOS 6 64-bit:

    # wget
  2. Reinstall psa-mail-driver-common

    # rpm -Uvh psa-mail-driver-common-11.5.30-cos6.build115130819.13.x86_64.rpm --force
  3. Install the Parallels Plesk microupdates afterwards:

    # /usr/local/psa/admin/sbin/autoinstaller --select-product-id plesk --select-release-current --reinstall-patch --install-component base

Search Words

courier-authdaemon: file not found

file not found


Installing libauthpsa

libauthpsa is not found

a914db3fdc7a53ddcfd1b2db8f5a1b9c 56797cefb1efc9130f7c48a7d1db0f0c 01bc4c8cf5b7f01f815a7ada004154a2 29d1e90fd304f01e6420fbe60f66f838 0a53c5a9ca65a74d37ef5c5eaeb55d7f

Email subscription for changes to this article
Save as PDF