exchange 5.5 to exchange 2003 move.

[dan]

We have two depts in a company: GC and CC. GC is going to absorb CC. We want to put CC's users and

email into GC's 2003 AD.


currently the CC Dept:
w2k AD 2000 single domain forest
mail: uses GC's Exhange 5.5 org.

currently the GC Dept (is performing a NT to 2003 AD "migration"):
GC has NT4 domains
GC has a 2003 AD single domain forest (GC.local) that they are "migrating" to (new)
GC has an exchange 5.5 org that CC Dept also uses (old)
GC has installed a 2003 Exchange server belonging to the old 5.5 exhange org (GC.local - new).
GC Dept is using ADC for authentication to the mailboxes (NT4 to AD).

GC Dept is moving their exchange 5.5 mailboxes from an NT4 exhange 5.5 server to a 2003 exhange

server but currently keeping the exhange 2003 server as part of the exchange 5.5 org.


Regarding the CC Dept which has its own w2k AD forest, we want to take their users and put them

into our 2003 AD GC.local as a separate OU. We also want to move their email boxes in the same

fashion as the GC Dept (exhange 5.5 NT4 box to exchange 2003 (5.5 org) box--eventually the email

5.5 org will become the AD integrated org).

We are thinking we should move the exhange 5.5 mailboxes to exchange 2003 first, and then do the

w2k user accounts second. Any thoughts on this?

Dan