I have a customer that has Unity 4.0(5) integrated into an Exchange 2000 environment. They are adding Exchange 2007 into the environment so they will need to extend the AD schema. The partner server for Unity will not be changing at all (existing Unity and Exchange 2000 servers won't even be touched).
I am fairly confident this will not affect Unity at all, but I am trying to find some documentation to support this.
I would think this would be documented somwhere as "supported". Most large customers would probably deploy Exchange 2007 first into their existing Exchange environment to work out the bugs first before adding new Unity 7.0 envirionment and changing all the users over.
I need hard documented proof on this. I know it "should" work and have seen it work in some instances. However, I have a customer with 5000 mailboxes that will not proceed without documentation.
Please advise (I did open a PDI help desk ticket but hoping to find someone from the BU who can point me to documentation).