User Mode Linux

[andrew@2sheds.de]

Hi all!

Am currently going through that stage of deciding whether to
use user mode linux or not.

The situation is the following...
I have 1 server and need to run the following applications.

* DNS (Primary)

* Mail Service
  - IMAP
  - SMTP Mail: Postgres or Sendmail  - still deciding
  - IMP - For web Mail

* Web Server running custom app
  - Apache with ModPerl
  - a few perl daemons...

* Private Web Servers
  - Apache
  - FTP

Do I try and run this all on the 'one box'? or should I create
4x UserModeLinux environments and run each one in its own 
'jail'.... 

The FTP server and IMP cause me the most concerns....

Any ideas? Anyone used UML and changed back?

Thanks

Andrew