large numbers of linux system user for postfix

[ahmad riza h nst <rizahnst@xxxxxxxxx>]

hello,

i need to setup a mail server with postfix + dovecot + webmin +
virtualmin + virtual user with linux system user. the virtual user may
reach to thousands user from several hundreds virtual domains.

what i concern is large numbers of linux system user which used in
these setup, is it good or bad?
maybe somebody would share their experience about this setup ?

any links would be good.

postfix 2.6.7
dovecot 2.0.6
centos 5.x
webmin + virtualmin


thank you.

-- 
http://blog.rizahnst.org
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