#1 ideas

[Anonymous]

the script should also install anti virus and spamassassin.
see also: helios-qmail.sf.net

or, better yet....
everything is installed in live cd (like knoppix) using
openbsd system and ready to run from the cd.
just boot the disc and it works...
(truely lazydog;)
with option to install into hdd.

[Nobody/Anonymous]

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also...
squirrelmail with all the plugin to manage spam and virus
from the webmail.