Issue Mailman UI results in TLS-Error (BAD_CERT_DOMAIN)

[Jan]

Hello folks,

I run into a small issue with TLS and Mailman:

System: Plesk Onyx Version 17.8.11 Update #52, last updated on April 27, 2019 10:09 PM
OS: ‪Debian 9.9‬

Is:

• Plesk: (Selected) Domain View -> Mail Settings -> Mailing-Liste -> Link: Manage the list (for a lists) yields https://lists.ptest.jluehr.de/mailman/admin/ causing an TLS error. The URL uses the default certificate (here: Let's encrypt), that is not valid for lists.ptest.jluehr.de - https://www3.jluehr.de/mailman/admin/ (server name) results in 404.

Should:

• Either: Link yields https://www3.jluehr.de/mailman/admin/ not resulting an a 404-error
• Or: Let's encrypt certificates for domains or server include lists.ptest.jluehr.de

Is there a way to achieve this?

Thanksin advance,
Greetz, Jan