FIX: This task does not support recipients of this type. The specified recipient is of type RemoteUserMailbox

When I tried to make a Office 365 Exchange Online mailbox visible in my on-premises environment, the following error occurred:

PS C:\Windows\System32\WindowsPowerShell\v1.0> Enable-RemoteMailbox user1 -RemoteRoutingAddress user1@tenant.mail.onmicrosoft.com -PrimarySmtpAddress user1@tenant.com
This task does not support recipients of this type. The specified recipient Int.tenant.com/Users/user1 is of type RemoteUserMailbox. Please make sure that this recipient matches the required recipient type for this task.

This task does not support recipients of this type.
This task does not support recipients of this type. The specified recipient is of type RemoteUserMailbox

I wanted to use the Enable-RemoteMailbox cmdlet to mail-enable the user in my Exchange 2013 environment. The issue started weeks ago when a user complained he could not use Outlook on his pc. He could use Outlook WebApp though. I then found out our Servicedesk created his mailbox in Office365 using the Office 365 portal. In a hybrid environment, you still have to run the Enable-RemoteMailbox command to mail-enable the user on-premises. After running Enable-RemoteMailbox the user was able to use Outlook.

Funny part of the This task does not support recipients of this type. The specified recipient Int.tenant.com/Users/user1 is of type RemoteUserMailbox. error: the user had no issue and was already enabled and visible in my Exchange 2013 exchange control panel. My bad… :’-)

Refer for more information to: https://docs.microsoft.com/en-us/powershell/module/exchange/federation-and-hybrid/enable-remotemailbox?view=exchange-ps

As successful Enable-RemoteMailbox cmdlet would look like this:

PS C:\Windows\System32\WindowsPowerShell\v1.0> Enable-RemoteMailbox user1@tenant.com -RemoteRoutingAddress
user1@tenant.mail.onmicrosoft.com -PrimarySmtpAddress user1@tenant.com

Name RecipientTypeDetails RemoteRecipientType
—- ——————– ——————-
User1 RemoteUserMailbox ProvisionMailbox

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