Migrating Mailbox On-premise to the Cloud

Iron Contributor



Please i need your help on this issue.


We have over 150 active mailboxes On-Prem which we would like to migrate to the cloud.

Please how do i go about this. Is there any guidance or steps to go about it. 

1 Reply
Please below doing the step by step.
1.Review the implications and requirements of hybrid deployment.
Note) On-premises Exchange releases Hybrid deployments require the latest cumulative update or update rollup available for the version of Exchange you have installed in your on-premises organization.
2.Add your domain to Office 365.
3.Set up directory synchronization from your on-premises directory service to Azure Active Directory. -> 1 Windows Server 2019 server required
4.Create or update an SPF record on your DNS host.
5.Exchange public certificate configuration
6.Configure the hybrid service using the Hybrid Configuration wizard.
7.Move user mailboxes to Office 365
8.Route email to Office 365.