Forum Discussion

Brass Contributor

Jun 14, 2017

Solved

Create shared mailbox on Hybrid environment - directly on O365 or onpremises then migrate it to O365

Hi, What is the recommended way to create shared mailboxes for a hybrid environment? There are some issues if you create them directly to O365 - https://support.microsoft.com/en-us/help/3129334/u...

exchange

hybrid

NunoAriasSilva
Jun 14, 2017
Hi Carlos,

If you have an Hybrid, your autodiscover is pointing to your on-premises Exchange. If you create your Mailbox only in Cloud, your AD and Exchange does not have any propreties of that mailbox, that is the issue.

David Lambrecht

Brass Contributor

Feb 06, 2018

We have Hybrid.

We always create user and mailbox on prem then migrate to O365 .

We do this both for regular an shared mailbox.

Never had a problem.

In case regular mailbox is in o365 and needs to be converted to shared mailbox.

We migrate is to onprem convert to shared with the command and then migrate it back to O365.

Dont know if there is any other option?

Would be nice just to convert in O365 !

NunoAriasSilva

MVP

Feb 06, 2018

Hi David,

You can convert in Office 365 the shared mailbox on the Exchange Admin Center or Exchange Online Powershell.

You do not need to migrate the mailbox to on-premises.

David Lambrecht
Brass Contributor
Feb 06, 2018
Hi,

Are you shure that wont give any problems.

We dont have AD write back to onprem...

So i asume just login to exchange online and stet mailbox shared with powershell ?

Regards,

David
- NunoAriasSilva
  MVP
  Feb 06, 2018
  Hi David,
  
  If you do not have AD write back the process is what you describe. Here is the support article with information https://support.microsoft.com/en-us/help/2710029/shared-mailboxes-are-unexpectedly-converted-to-user-mailboxes-after-di
  - David Lambrecht
    Brass Contributor
    Feb 06, 2018
    Ok Thanks
    
    I had some hope ...
    
    Regards,
    
    David