Courier-MTA for VirtualMin

I am looking for a Courier-MTA plugin for VirtualMin.

I am of course not talking here about Courier-IMAP or Courier-POP. but the actual MTA. apparently recent version include some Groupware functionality which could be nice to get incorporated into Webmin in some ways. but just getting the basic MTA functionality to replace sendmail/postfix would make me happy.

I googled around but I can’t find any. I guess there is not.