Exchange cross Forest Migration 2003 to 2007
I am in the position of having to acheive an Exchange migration from 2003 current to 2007 also crossing from domain abc.com to abc.def.com for all applications / users. We also use a mail archiving product (Symantec Enteprise Vault).

I am looking for a recommended approach to the Echange part. I belive the use of a resource Forest for exchange will allow me the easiest route allowing more time for the application side to be planned and exceuted.

Due to a large number of users and mail / archive data this migration will take an extended period of time and the need to maintain calendaring across migrated / unmigrated users is paramount to my business.

Thanks in advanced to anyone who is in a position to enlighten me



Software/Hardware used:
,Exchange 2003 2007
ASKED: July 24, 2011  9:50 PM
UPDATED: March 31, 2012  8:22 PM

Answer Wiki:
Hi, we used IIFP tool for GAL and Exchsync for Calendar and Public Folder replication between the two Forests in the interim while we migrated a/cs and mailbox. Both are free MS tools. It takes a little time to set it up but once it is set up it works very well. Please set it up in a test env first to get the feel of it. Here are the links for step by step IIFP set up and IIFP automation. Hope it helps. IIFP Setup: http://exchangeserverinfo.com/2008/06/22/configuring-schedule-free-busy-information-between-the-forests--exchange-2007--2003.aspx IIFP automation. http://msmvps.com/blogs/clustering/archive/2004/10/06/15141.aspx Best, - Subin
Last Wiki Answer Submitted:  July 25, 2011  5:52 pm  by  Symyuser   0 pts.
All Answer Wiki Contributors:  Symyuser   0 pts.
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