Hybrid exchange server

Question

Hybrid exchange server

HASSAN BIN NASIR DAR 391

Hi,

Please clear my concept.

If companies have On-premise exchange server then on which cases companies need to do hybrid deployment. What is the benefits of hybrid deployment rather than cutover migration?

In hybrid deployment one user has mailbox on both sides (onpremise and exchange online). What is the benefits of this kind of scenario. thanks

Regards

Aholic Liang-MSFT 13,886 Reputation points Microsoft External Staff

2022-09-16T08:12:55.61+00:00

Hi @HASSAN BIN NASIR DAR ,
I agree with DillonJS . We recommend that you use a single environment in which you manage your corporate organization if you do not have to use on-premises AD. And the operation and maintenance of hybrid Exchange deployments is more complex and difficult than that of a single environment.
If you have decided to deploy Exchange Server Hybrid, the following article details what features it has:
Exchange Server hybrid deployments | Microsoft Learn

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Aholic Liang-MSFT 13,886 Reputation points Microsoft External Staff

2022-09-16T08:12:55.61+00:00

Hi @HASSAN BIN NASIR DAR ,
I agree with DillonJS . We recommend that you use a single environment in which you manage your corporate organization if you do not have to use on-premises AD. And the operation and maintenance of hybrid Exchange deployments is more complex and difficult than that of a single environment.
If you have decided to deploy Exchange Server Hybrid, the following article details what features it has:
Exchange Server hybrid deployments | Microsoft Learn

Answer 1

Dillon Silzer 57,826 Volunteer Moderator

Hi @HASSAN BIN NASIR DAR

The reason you might be in a hybrid situation is you have on-premises solutions that require having a local Active Directory. (an example may be is that you have applications that require LDAP or a File Share where you still use local AD accounts).

Then you would use Azure AD Connect to ensure that local Exchange accounts (AD Accounts) are also migrated to Microsoft 365 Azure AD.

If you don't have local on-premises applications that require a local AD then it would be safe to say to just cutover completely to Microsoft 365 (Azure AD and Exchange Online).

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If this is helpful please accept answer.

HASSAN BIN NASIR DAR 391 Reputation points

2022-09-16T10:39:11.263+00:00

Hi,

Thanks for your reply.

In hybrid case, if someone send email to organization user. Where email will be saved? In onpremise exchange mailbox or O365 mailbox?
Dillon Silzer 57,826 Reputation points Volunteer Moderator

2022-09-16T15:12:41.697+00:00

If that mailbox is being synced to O365 AAD, then it should be saved in the cloud's mailbox.
Dillon Silzer 57,826 Reputation points Volunteer Moderator

2022-09-17T15:32:45.14+00:00

If you have any questions let us know. If not, please accept answer. Have a good day.
Aholic Liang-MSFT 13,886 Reputation points Microsoft External Staff

2022-09-20T06:32:34.017+00:00

Hi,
Just checking in to see how things are going on with this thread.
If the reply was helpful, you can click the "Accept Answer" button under this post so that other's with similar question can benefit from this thread as well.
If you still have further questions or concerns, feel free to post back.

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Hybrid exchange server

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