"Failed to create a remote mailbox for the user" when enabling Exchange Online license

Question

Hi, when I enable a license for Exchange Online for a user I get the following warning: Here are the current settings for creating a remote mailbox per this article: I've tried to set a template for the remote routing address but I get the below error when running the powershell script: The property 'RemoteMailboxesRemoteRoutingAddress' cannot be found on this object. Verify that the property exists and can be set. At line:19 char:1

• $tenant.RemoteMailboxesRemoteRoutingAddress = $addressTemplate + ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~     + CategoryInfo          : InvalidOperation: (:) [], RuntimeException     + FullyQualifiedErrorId : PropertyAssignmentException

Comments

Hello Allister,

To help us troubleshoot the issue, please, provide us with a screenshot of the Multi-server environment dialog. The dialog displays how many Adaxes services you have and what their versions are. For information on how to view it, see https://www.adaxes.com/help/MultiServerEnvironment. Also, please, provide the full script you executed in TXT format.

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Hi, here is the multi-server environment dialog:

The script I ran is:

[Reflection.Assembly]::LoadWithPartialName("Softerra.Adaxes.Adsi")

$serviceHost = "localhost" $tenantDN = "CN=Office 365,CN=Cloud Services,CN=Configuration Objects,CN=Adaxes Configuration,CN=Adaxes" $addressTemplate = "%username%@DOMAIN.mail.onmicrosoft.com"

# Connect to the Adaxes service. $ns = New-Object "Softerra.Adaxes.Adsi.AdmNamespace" $service = $ns.GetServiceDirectly($serviceHost)

# Prompt for credentials. $credential = Get-Credential

# Bind to the Microsoft 365 tenant. $tenant = $service.OpenObject("Adaxes://$tenantDN", `     $credential.UserName, $credential.GetNetworkCredential().Password, 0)

# Update the template. $tenant.RemoteMailboxesRemoteRoutingAddress = $addressTemplate $tenant.SetInfo()

Answer 1

Hello Allister,

Thank you for the provided details. The $tenantDN variable value is incorrect. It must be like below. To get the proper value, make sure to follow precisely the steps from the variable description (looks like you missed steps 6 and 7).

CN=My Tenant,CN=Office 365,CN=Cloud Services,CN=Configuration Objects,CN=Adaxes Configuration,CN=Adaxes

Also, you are using an old build of Adaxes 2025.1 that has known issues. We recommend upgrading to Adaxes 2025.1 Update 4.

Upgrade instructions

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