Introduction to Part1 of Exchange Cross-Forest Migration

There are usually several different reasons for Exchange cross-forest migration, including:

Corporate mergers and acquisitions

Corporate integration

For secure IT environment segmentation

Start deploying a new Exchange environment to replace the old one

The company changed its name

Information environment needs to be isolated.

The source address https://www.petri.com/microsoft-exchange-2010-cross-forest-migration is described above.

The current situation for the company is to deploy a new Exchange environment to replace the old one.

Why not upgrade but choose to build a new set, because the original domain has been created for a long time, and the permissions are relatively chaotic. Therefore, we choose to build a new set, migrate the account and enable the mailbox. The mailbox content is operated through bulk import and export pst.

The main operations of migration:

Configure DNS resolution and trust between two AD forests

Configuration synchronization between two AD forests