the default rule for moving spam to the "Junk"-dir seems to be broken on my system (Ubuntu 12.04 LTS, x86_64).
It produces an error:
sieve: info: started log at Sep 12 12:13:06.
main_script: line 13: error: unexpected character(s) starting with '`'.
main_script: line 13: error: unexpected unknown characters found at (the presumed) end of file.
main_script: error: parse failed.
No idea why. The line in question reads:
`test -e "$DEFAULT/.Junk" && exit 1 || exit 0`
Maybe I'm blind, but I don't see the reason.
P.S.: It's a standard install of ispconfig, nothing was added on our own.