Ok Vijay
Actually i have configured QMAIL recently on Both Linux Flavors (REDHAT and SUSE),Its working fine.....
And the doc given in qmailrocks.org is excelent
ok do last 1 thing .............,may be it will help u
go to vadmin console by typing
http://www.yourdomain.com/cgi-bin/vqadmin/vqadmin.cgi
(-> where yourdomain.com is the domain u set at prev step)
give the user as admin , password as u have set & just add a new domain (like test.com) , add the new user vijay@test.com, give password for this user
& after saving the changes , telnet ur server by command
#telnet localhost 110
(Note: if u have changed your hostname from localhost, then write new hostname in place of localhost)
Just
login with your new user i.e vijay@test.com & the required password)
TEST WHEATHER IT WORKS OR NOT