i installed mail server successfully but when i click on settings for mail server
Mail Server is not currently installed, is it installed?
when i click on confirm
Installing post office service, it may take 5-10 minutes, please wait ...
and after while
is says prepration failed
what can i do to fix it?
again i didnt have any problem with aapanel on centos 7
but on centos 8 nothing works propely