Attempt to create e-mail fails with the following error message:
Error: The error 'Unknown SSL protocol error in connection to IP:8443 ' occurred during the connection to the agent at 'https://IP:8443/agent.cgi'.
This issue caused by the fact that offline management for Postfix node is enabled on Hardware node.
[root@HardwareNode ~]# vzlist -o offline_management CTID OFF_MGMT yes
To fix this issue disable offline management for the Postfix container on hardware node with the following command:
[root@HardwareNode ~]# prlctl set CTID --offline_management off The CT has been successfully configured.
Make sure that offline management is disabled:
[root@HardwareNode ~]# vzlist -o offline_management CTID OFF_MGMT no [root@HardwareNode ~]# grep -i offline /etc/vz/conf/CTID.conf OFFLINE_MANAGEMENT="no"