Provisioning AD Users in a Hybrid Office 365 Environment

Have a customer who's migrating to Office365 and have decided to go the hybrid route. Currently trying to work out what my AD user provisioning requirements are to help facilitate this.

Reading this post, I am pretty confident that most of the Powershell can be avoided by simply setting the right attributes on the user. So, I imagine it would work like this:

1. Provision new user to AD with:
   • msExchRecipientDisplayType = -2147483642
   • msExchRecipientTypeDetails = 2147483648
   • msExchRemoteRecipientType = 1
   • targetAddress = SMTP:first.last@tenant.onmicrosoft.com
   • mail = first.last@domain.com
   • proxyAddresses = SMTP:first.last@domain.com; smtp:first.last@tenant.onmicrosoft.com;
   • optional: msExchHideFromAddressBook = False (or True)
     
2. Execute Powershell script to run Enable-RemoteMailbox. This will configure the user on-prem to be a remote mail-user
3. Let AADConnect do its thing and sync the user to AAD
4. Execute Powershell script to apply the correct O365 license to the user in AAD, which will in turn create the actual remote mailbox

Was hoping someone could confirm for me that this is the right approach.

Regards,

Ross Currie

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