Usernames type

[Lincoln Zuljewic Silva]

Hello all again...

I have another problem.
In my company, the default unsernames to e-mail is <name>.<last
name>@domain, for example the user Richard Stallman is
richard.stallman.
but in cyrus, the mailboxes is user.<username>.<folders>
if I create a mailbox user.richard.stallman, cyrus will understand
that stallman is a subfolder of the user.richard...

how I can create the mailboxes in tha format <name>.<last name> ?
-- 
Lincoln Zuljewic Silva
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