How to migrate email from Google Workspace to Office 365?



Migrating email from Google Workspace (formerly known as G Suite) to Microsoft 365 (formerly known as Office 365) involves several steps to ensure a smooth transition.

Quick Steps: Microsoft Reference article: Perform a Google Workspace (formerly G Suite) migration to Microsoft 365 or Office 365

Below are the general steps you can follow to perform this migration:

Before You Begin:
Plan: Define your migration strategy, including which email accounts will be migrated, what data needs to be moved, and the migration method you'll use.

Prepare User Accounts: Make sure all Microsoft 365 user accounts are set up and licenses are assigned.

Back Up Data: Consider backing up your Google Workspace data before the migration to ensure you have a copy of all email, contacts, and calendars.

Migration Steps:
Set Up Microsoft 365 Tenant:
Ensure your Microsoft 365 tenant is set up and properly configured.
Create DNS Records:
Update your DNS records to point to Microsoft 365 for email routing.
Choose a Migration Method:
There are several migration methods to consider:
Cutover Migration: Suitable for smaller organizations. It migrates all user accounts at once.
Staged Migration: Appropriate for larger organizations. It migrates users in batches.
IMAP Migration: This method is more flexible and can be used for individual or batch migrations.

Migrate Data:
Depending on your chosen migration method, perform the migration:
Cutover and Staged Migration: Use the Microsoft 365 admin center or PowerShell to initiate the migration and move email, contacts, and calendars.
IMAP Migration: Configure IMAP settings for each user in the Microsoft 365 admin center and start the migration.
Verify Data: After the migration is complete, check the Microsoft 365 accounts to ensure all email, contacts, and calendars have been transferred correctly.

Update End-User Settings:
Make sure end-users update their email client settings to connect to their new Microsoft 365 accounts.
Route Email to Microsoft 365:
Update your DNS records to ensure email is delivered to the new Microsoft 365 accounts.
Test and Monitor:
Test email functionality for all users and monitor the system for any issues.

** Decommission Google Workspace:** Once you're confident that the migration is successful, you can decommission Google Workspace for email.

Train End-Users: Provide training and support to your users for any differences they may experience when using Microsoft 365.

Please note that the specific steps and tools for migration may vary depending on the method you choose and the versions of Google Workspace and Microsoft 365 you are using. Additionally, it's advisable to consult the official Microsoft Open Microsoft 365 ticket and Google documentation for detailed guidance on the migration process. It may also be helpful to involve IT professionals or third-party migration specialists for larger or more complex migrations.