I am trying to get logwatch working on CentOS 8. System is fully updated. Usually install minimal version and then add only necessary with yum.
On CentOS 7: install logwatch and get daily logwatch report on mail.
On CentOS 8: install logwatch but no way to get mail.
Looks like Postfix is no longer mandatory, I have to explicitly add it to my minimal kickstart whereas with 7, that was not the case.
Check if you even have a local mta installed.
jlc