I recently changed a user's name, primary short name and home dir in
workgroup mgr via the inspector. I added her old shortname to the
list of shortnames as well..
I chowned her home directory to her new short name and she is able to
log in and see her desktop/files without incident...
We she logs-in via mail.app or webmail, all of her messages and IMAP
folders are gone. Mail to either of the shortnames is appearing in
her (new) mailbox, and when I look at the mailstore all of the new
mail is contained within the directory named the same as her new
shortname. Of course a folder by the name of her old shortname is
still there - with all of her messages from the prior to the rename...
A quick read of the cyrus wiki yielded the RENAME command - which
looks like it may be the answer...