office 365 offboarding migration to Exchange On-Premises

Posted on 2014-12-21
Medium Priority
Last Modified: 2016-06-19
I use Office 365 to manage my company mailboxes.
We've decided that we want to go back to Exchange 2010 On-Premises.
When we first wanted to work with Office 365, we did a "Cutover" migration from Exchange 2003 to Office 365.
The Exchange 2003 was removed and we recently Installed Exchange 2010 in our domain.
We don't have a Hybrid mode and we do have an AD users in the domain.
I want to know if there is a way to migrate all my mailboxes from Office 365 to my existing Exchange 2010, link them to my existing AD users and remove Office 365 from managing my mailboxes.

Thank you,

Question by:avive
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
  • 2
  • 2
  • 2
  • +1
LVL 42

Accepted Solution

Vasil Michev (MVP) earned 2000 total points
ID: 40512430
Hybrid is the best option for doing this. Here's an example article on how the process works: http://community.office365.com/en-us/w/exchange/566.aspx

Also, migrating back to 2010 can be an issue, as EO mailboxes store Lync contacts and you will end up losing those. See for example here: http://oddytee.wordpress.com/2014/04/09/you-shouldn‎t-migrate-mailbox-to-exchange-2010-or-an-earlier-version-while-the-user‎s-instant-messaging-contact-list-is-stored-in-exchange/

If Hybrid is out of the question, you can do a manual export to PSTs using Outlook and load them back in the on-prem Exchange.
LVL 31

Expert Comment

by:Gareth Gudger
ID: 40512491
Other options might be to use something like MigrationWiz to perform the move out of cloud to on premise.

Author Comment

ID: 40512597
Hi Vasil,
We don't have Lync or Instant messaging.
Can we create a Hybrid connection from Exchange 2010 On-Premises to Office 365 Exchange Online mailboxes?
will I be able to link them to an existing users in my domain without causing sync or AD problems?
If so, is there any documentation or step by step procedure?


NEW Veeam Agent for Microsoft Windows

Backup and recover physical and cloud-based servers and workstations, as well as endpoint devices that belong to remote users. Avoid downtime and data loss quickly and easily for Windows-based physical or public cloud-based workloads!

LVL 42

Assisted Solution

by:Vasil Michev (MVP)
Vasil Michev (MVP) earned 2000 total points
ID: 40513422
To setup the Hybrid, best refer to the Exchange Deployment assistant: http://technet.microsoft.com/en-us/exdeploy2013/

For the actual move process, refer to the article in my previous post.

Expert Comment

ID: 40797606
Also check this migration tutorial. May be...it works in your scenario.

Author Comment

ID: 40820181
LVL 31

Expert Comment

by:Gareth Gudger
ID: 40820337
Hey avive,

Looks like this is a new problem. Please close this question and open a new question.

Featured Post

Technology Partners: We Want Your Opinion!

We value your feedback.

Take our survey and automatically be enter to win anyone of the following:
Yeti Cooler, Amazon eGift Card, and Movie eGift Card!

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

The following article is comprised of the pearls we have garnered deploying virtualization solutions since Virtual Server 2005 and subsequent 2008 RTM+ Hyper-V in standalone and clustered environments.
Unified and professional email signatures help maintain a consistent company brand image to the outside world. This article shows how to create an email signature in Exchange Server 2010 using a transport rule and how to overcome native limitations …
To add imagery to an HTML email signature, you have two options available to you. You can either add a logo/image by embedding it directly into the signature or hosting it externally and linking to it. The vast majority of email clients display l…
Have you created a query with information for a calendar? ... and then, abra-cadabra, the calendar is done?! I am going to show you how to make that happen. Visualize your data!  ... really see it To use the code to create a calendar from a q…
Suggested Courses

770 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question