couple things here...
During the restore users are searched for and bound do in your directory (i.e. DiRT does not blindly create new accounts all over the place). It'll first search by directory ID, then by RDN then by alias (mail nickname). Only if all of those searches in your directory fail, then it'll create a new account for that user.
In your case if your aliases happen to match up you're golden, this will work nicely for you. For whatever reason I have yet to see a site use the same alias naming convention for their stand alone voice mail as they do for their corporate email... I'm unsure why this is, just one of those facts of the universe.
To help address this the Customer Applications Team is working on a "move subscriber data" tool that's in QA testing at the moment. It can be used to move all subscriber data off one mail account (55 or 2000) onto another mail account. Using this mechanism the accounts that were created by DiRT during restore (assuming the aliases don't match up) can be moved onto the correct corporate email account using the Move Subscriber Data tool.
Kind of an annoying two step process but better than a poke in the eye with a sharp stick. Also, the Move Subscriber Data tool does NOT move messages... just Unity subscriber data. Moving messages is up to you.
I expect to have the MSD tool available on AnswerMonkey in the next couple of weeks and we'll then start working on TAC support for it after that.
Jeff Lindborg
Unity Technical Lead/Answer Monkey
Cisco Systems
lindborg@cisco.com
http://www.AnswerMonkey.net (new page for Unity support tools and scripts)
