Once you create trusts, you can use Microsoft Identity Integration Server (MIIS) Feature Pack 1a's GALSync tool to synchronize global address lists (GALs). This allows recipients from one organization to be replicated as contacts in the other organization and vice versa.
The next step is to use the InterOrg Replication Tool to replicate Free/Busy information. This allows recipients from one organization to schedule meetings with recipients in the other organization, and to be able to view each other's free/busy information.
Do you have comments on this Ask the Expert Q&A? Let us know.
Ask a Microsoft Exchange question in our IT forum.
Dig Deeper on Exchange Server setup and troubleshooting
Related Q&A from Bharat Suneja
Find out how to troubleshoot problems scripting Exchange Server email disclaimers and signatures. Continue Reading
Learn how to bulk modify alternate recipients and other Active Directory objects in Exchange Server 2003. Continue Reading
Discover tools and methods to globally disable IMAP and POP in Microsoft Exchange Server 2003. Continue Reading
Have a question for an expert?
Please add a title for your question
Get answers from a TechTarget expert on whatever's puzzling you.