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Migrator for GroupWise 4.7 - Scenarios Guide

About this guide Scenarios overview Migration to a proprietary Exchange target
Pre-migration preparations Batch migration process Post-migration activities
Migration to Office 365
Migration to Office 365 Pre-migration preparations Batch migration process Post-migration activities
SSDM (per-desktop) migration

When you are finished with this batch ...

Repeat these steps for each batch of migrating users until the entire user population is migrated. You may also integrate some of the Pre-Migration Preparations into this process, depending on your circumstances. When you have migrated the last user batch, proceed to the Post-Migration Activities.

Post-migration activities

These post-migration activities apply to migrations to Office 365. Perform these tasks only after you have migrated the last user batch (by the Admin Batch Migrator) or the last individual user (by the SSDM).

Step 1: Provision public distribution lists in Exchange

Run Migrator for GroupWise’s Administrator-Driven Batch Migrator to provision GroupWise public distribution lists (PDLs) as Exchange distribution groups. The program reads a GroupsToProvision.txt data file, generated by the Directory Exporter, to provision PDLs into Office 365. If necessary, you can update PDL content and/or membership in the GroupsToProvision.txt file prior to provisioning the PDLs into Active Directory.

PDLs are typically provisioned in Office 365 separately, after users are migrated in the batch-migration process. For more information and field notes, see the Administrator-Driven Batch Migrator chapter of the Migrator for GroupWise Administration Guide.

After your distribution lists are provisioned into Office 365, check the Message Delivery Restrictions settings for any Exchange (Office 365) group to which you want GroupWise users to be able to send messages. Any such Exchange group must be of the universal distribution type to be mail-enabled. To change the settings, beginning in the Office 365 Exchange admin center:

1
Select recipients (in the navigation bar at left), and then groups. Then select and double-click the Distribution group you want to edit.
2
Click the delivery management tab, and select the radio button for Sender inside and outside of my organization.

Repeat these steps for each Office 365 distribution group whose members you want to be able to receive messages from GroupWise senders.

Step 2: Modify routing

Most migration admins use Migrator for GroupWise to automatically update forwarding in both systems to ensure proper routing to migrated users and those still using GroupWise. When the user and group migration is complete, routing can be permanently updated.

Depending on the specifics of the environment, this may involve modifying the MX record(s), updating routing tables, and/or firewall modifications. Redirect incoming external (Internet) mail to the Office 365 domain instead of the GroupWise environment.

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