If you have a mail client talking to both the old and new servers at once, it might be as easy to just move the messages from one folder to another using that client. The mail would all have to move through the client, but it might be faster than writing a script. IF you can do it with a mail client on the mail server then that stands in for your script pretty well.
If it was for only one client, sure (even though not many mail clients copy a bunch of folders across IMAP servers) but we're talking 200+ users here :)
Regards, Gonzalo
-- SLUG - Sydney Linux User's Group - http://slug.org.au/ More Info: http://lists.slug.org.au/listinfo/slug
