I am using CentOS 7.4. The mailman URL is not working. Using mailman without the cgi part of the URL works. Was I supposed to install the VPS version of Mailman, Mailman 3?
Is there a workaround or fix for the issue? Will Mailman 3 be incorporated in a future version of ISPConfig. I am asking because Mailman 3 has support for VPS.
You can try this workaround, which is for Ubuntu. It might work on CentOS as well. https://git.ispconfig.org/ispconfig/ispconfig3/issues/4323 We'll probably switch to Mailman 3 as well in future as the old version has just too many issues on systems with multiple domains. There is als MMLMJ support in the master branch which will be part of ISPConfig 3.2 as mailman alternative.