Application Development Software

Hi there,

First of all this is my first time using unix and i have some questions .

second i have to clusters ( internal , external) ... each cluster has 2 nodes and LDAP server , iplanet is the mail server , i'm using Netscap for browsing and adding removing users.
also i'm using Delegated Administrator from the browser . to do the same job that netscap do.

my questions are :

** how to know over quota mailboxes ( for each user) .. i already try to use (imquotacheck )+(mboxutil) but both are not working i dont know why .*

** how to change the notification massage that appears when the mailbox get overquoted ( it appears when 10% of mailbox remaining ) how to encrease it to i.e 40% .*

** i need the command that can be use to send notification to all overquota mailbox .*

thanks in advance