[vchkpw] Change/Rename all users to new domain

[Juliano Souza - Tecnologia]

I have 300 users at the domain "anyexample.net", we register a new 
domain called "example.net".
But the users authenticate via imap using "[EMAIL PROTECTED]".
I want to change/rename all the users to the new domain "example.net" , 
so the user are now "[EMAIL PROTECTED]", and authenticate using this account.

How I can change "transparently" the method of auth and internal 
delivery (qmail/vpopmail) ?

Regards,


Juliano Souza