How to create an O365 Mailbox when there is no On-Prem Exchange Servers.
November 6, 2018 at 11:45 am 1 comment
In some cases the IT department decomission the On-Prem Exchange Server after migrating the mailboxes to O365. (For detailed steps for uninstallation of Exchange Please refer my previous article : https://vands.pro/2018/11/06/how-to-decomission-on-prem-exchange-server-after-migrating-the-mailboxes-to-o365/.
OK, Coming back to mailbox creation ; All these steps need to be done in the ADUC
+ Create an AD User.
+ Type the email address in the email field.
+ Go to the Account Tab and select the correct domain name.
+ In the Attributes Editor modify the two parameter’s as below
proxyAddresses: SMTP: myemail@email.com
targetAddress: SMTP: myemail@companyname.onmicrosoft.com
+ Either perform a manual sync or wait for the next schedule.
+ After the Sync is completed you will be able to see the user in O365 Portal and need to assign the Exchange License to complete
the mailbox creation.
Credits: https://c7solutions.com/2014/07/creating-mailboxes-in-office-365-when-using-dirsync
Entry filed under: Exchange and O365. Tags: active directory, mailbox, o365.
Hope you like it.. 
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How to Decomission On-Prem Exchange Server after migrating the Mailboxes to O365 | Hope you like it.. | November 6, 2018 at 11:46 am
[…] This will lead you to to adopt non standard methods when creating new mailboxes(Refer my post https://vands.pro/2018/11/06/how-to-create-an-o365-mailbox-when-there-is-no-on-prem-exchange-servers… for detailed steps). Also if you still needed an Exchange Server in your premises to avoid […]