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KennethCagatcagat-0291 avatar image
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KennethCagatcagat-0291 asked KennethCagatcagat-0291 answered

Exchange Hybrid Setup Question

Hello Foks,
I'm a newbie when it comes to exchange management and other kind of stuffs.
I have been tasked to setup an on-prem exchange 2016 management server for our Office365 hybrid setup.
What we used to do is to manage users (account creation, deletion, modification) from AD and Attribute editors. Users are synced via adconnect tool for our Hybrid setup. It works fine.

Now I'm asked to setup a new Exchange 2016 server so we could manage the users from there in a GUI based management. I have completed the installation, basic setup without configuring anything. Basically just installed the server with the expectation of all users from our Office365 (since it is synced to AD) will appear on the on-prem ECP portal.

Now I saw couple of users appearing but most of the users I created from AD with (licenses) doesn't seem to appear on ECP.
My understanding is All licensed users from O365, since it is synced on-prem will also be synced (appearing) on the on prem Exchange portal if I open it and do the modification.

I would also like to note that we had an On-prem Exchange 2013 long time ago but was already removed and decomissioned. So basically they just need to add a new Exchange server 2016 and do the UI management of users there. How can I achieve this? I achieved the installation part but users doesn't seem to be replicating.

Forgive my dumbness but I just can't seem to understand.

Thank you for your help.




office-exchange-server-connectivityoffice-exchange-hybrid-itpro
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KyleXu-MSFT avatar image
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KyleXu-MSFT answered

@KennethCagatcagat-0291

For those Exchange online mailboxes, you need to run "Enable-RemoteMailbox" command from Exchange on-premises EMS for them, then you will could see those mailboxes show in Exchange on-premises as "Office 365" mailbox:

 Enable-RemoteMailbox "User" -RemoteRoutingAddress "User@domain.mail.onmicrosoft.com"

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You can also use a script to enable remote mailboxes for multiple mailboxes:
1) Prepare a CSV file contain the AD accounts that you want to enable remote mailbox:
127111-qa-kyle-15-40-00.png

2)Run script below to enable remote mailbox for them(before running this script, remember to change "domain" to your Exchange online domain):

 $temps = import-csv c:\temp\users.csv
     foreach ($temp in $temps){
     $user = $temp.name
     $address = $temp.name+"@domain.mail.onmicrosoft.com"
     Enable-RemoteMailbox $user -RemoteRoutingAddress $address
     }

127112-qa-kyle-15-43-20.png
If you doesn't familiar with hybrid and script, I would suggest you test with one mailbox first. Then apply on multiple mailboxes.


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KennethCagatcagat-0291 avatar image
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KennethCagatcagat-0291 answered

thank you @KyleXu-MSFT , this is exactly what I'm looking for.

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AndyDavid avatar image
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AndyDavid answered

The on-prem objects you can see in EAC and Exch Poweshell are remote mailboxes. If those arent created then you wont see anything in EAC.

To create:

https://blog.expta.com/2016/05/creating-remote-mailbox-in-exchange.html

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