I am helping my customer to go through a Novell to Microsoft change. This was a complete Novell house and the idea is to move all their current apps over to Microsoft equivilent. I have already set them up a AD structure and an exchange 2010 setup. The first phase is to move from GroupWise to Exchange, none of the client machines will be attached to the domain as yet however I do want to enfore a password change for all the AD users (accounts already setup in AD). I was hoping that when I launched outlook it would prompt me for old and new AD password however this is not the case. If I join a PC to the domain I get the prompt but none of the 500 odd PC's will be connected to the domain by the time I do the email migration. Can anyone help me out on how I can force the password change the first time users launch outlook?