more then one instance of qmail

[reach_prashant]

 

    hello  friends 

       i want to run more than one instance of qmail and related daemons
(qmail-smtpd, qmail-pop3d etc )  on same mechine , 

       so , what i should do ? 
  i know only this "installing qmail twice  onsame mechine with diff
"conf-home"   " ,  is there any other thing which should be considered 
while planning to run multiple qmail-instance on same mechine 

   thanks & regards 
Prashant Desai