Hello guys. So I Have been looking around and I just can't find the answer. I have a development multi server setup. However I never figured out one thing. And that is where the Mailman app gets installed. This is my current configuration and I am putting the same structure online in the cloud. Server Purpose Panel ISPconfig controlling server Mail Email server Web Webserver+ftp DB DB server NS DNS server So my question is this. Do I install mailman on the Panel (dedicated to control the ispconfig configuration) or the webserver, or the mail server? And what do I Need to do to install it where ever it goes? I use nginx as my web server. Cheers! and thanks in advance.