For many companies, the robust messaging and calendaring features offered by Office 365 for enterprises presents an opportunity to transition all messaging functionality from the on-premises organization into the cloud. Office 365 for enterprises includes a full suite of e-mail migration tools.

However, there are dependencies and restrictions on the migration tools that you may be able to use with Office 365. Variables such as your on-premises Exchange Server version, the number of mailboxes you want to move, and how you want to handle user identity will dictate the tools and processes you can use to migrate to the cloud.

Screenshot: Cloud-only scenario in Deployment Assistant
Figure 1 : A screen shot from the new "Cloud Only" scenario in the Deployment Assistant

To help you sort through the available options and plan your migration to the cloud, we’re happy to announce the “Cloud Only” option in the latest release of the Exchange Server Deployment Assistant. Like the other scenarios in the Deployment Assistant, the “Cloud Only” option allows you to step through a wizard that asks you questions about your current infrastructure and your migration goals. The Deployment Assistant will provide a migration solution that is based on your answers.

Your feedback is very important for the continued improvement of this tool. Give us your feedback on this new scenario and any other area of the Deployment Assistant. Feel free to post comments on this blog post, provide feedback in the Office 365 community migration and coexistence forum, or send an email to edafdbk@microsoft.com via the 'Feedback' link located in the header of every page of the Deployment Assistant.

John Speare