I installed via your most excellent Virtual Users And Domains With Postfix, Courier And MySQL (Debian Etch), so, I'm using Postfix.
Hmm, so why is this suddenly complaining about exim?
This was working great until I moved /var/www/munin to my (old,since removed) /var/www/webroot/ , then i apt-get --purge removed munin and reinstalled (back to /var/www). Since then only those 4 items show up on the munin web page whereas before about 15 did
Thanks for helping