Because of security settings on a client PC which blocks mail access to non-SSL sites I need to install a certificate issued by a CA.
In Edit Virtual Server -> Enabled features the SSL option does not show up. I understand that is because in System Settings -> Features and Plugins the option SSL Webiste is not enabled.
However, when I enable is, I receive this error message:
Failed to save enabled features : The plugin Mailman cannot be used : The mailman queue processor /var/lib/mailman/bin/qrunner is not running on your system. It can be started in the [Bootup and Shutdown] module
But starting mailman is not successful when I thry that from Bootup and Shutdown. No error message.
Starting from the command line: systemctl start mailman exits without an error message but there is no mailman process.
In Servers -> Mailman Mailing Lists there is a message:
Virtualmin has detected that 1 virtual servers have mailman redirect URLs that do not match the Virtualmin base URL
I requested to fix that. The error message disappeared, but mailman does not start.
The production version: Debian 8, Webmin 1.800 Virtualmin 5.03.
I have another server running so I copied the virtual server to a test environment:
Debian 8, Webmin 1.881, Virtualmin 6.03
So in case Virtualmin is outdated, setting up a new environment and transferring the virtual server is no solution.
I don’t use mailing lists, I am just running the mail server. Why the connection with SSL. And how to solve this?