I have done over 20 Virtualmin installs on Ubuntu 16.04 and Ubuntu 18.04 - without any problem.
However, NOW I cannot install on Xenial or Bionic without a LOT of fiddling.
ClamAV, Procmail and Postfix now all need manual edits. I guess updates in 3rd party apps have screwed it up. It would appear that Postfix does not get alias adding and it cascades from there.
Is this an installer that needs updating or just me?