(You can't use the domain because it's not an accepted domain for your organization) error when you run the Add-RecipientPermission cmdlet
Problem
Scenario 1
When you try to run the Add-RecipientPermission cmdlet in Exchange Online, you receive the following error message:
You can't use the domain because it's not an accepted domain for your organization.
CategoryInfo : NotSpecified: (:) [Add-RecipientPermission], NotAcceptedDomainException
Scenario 2
When you try to run the New-MoveRequest cmdlet in Exchange Online, in order to move a mailbox from on-premises to Exchange Online, you receive the following error message:
You can't use the domain because it's not an accepted domain for your organization.
CategoryInfo : NotSpecified: (:) [New-MoveRequest], NotAcceptedDomainException
Scenario 3
When you create a migration by using New-MigrationBatch command or from Exchange Online Exchange Admin Center, in order to move a mailbox from On-Premises to Exchange Online, after a while the migration will fail. And you'll see the following output on the ErrorSummary when you run:
Get-MigrationUserStatistics User1@contoso.com | fl
You can't use the domain because it's not an accepted domain for your organization.
Cause
The proxy address of the recipient uses a domain that isn't configured as an accepted domain in the organization.
Solution
Do one of the following:
- Add and verify the domain. For more information, see Adding additional domains to Microsoft 365.
- Remove the proxy address from the recipient. For more information, see Add or remove email addresses for a mailbox.
- Assign an Exchange Online license to the affected user. For more information, see Assign licenses to users in Microsoft 365 for business or Assign licenses to user accounts with Microsoft 365 PowerShell.
More information
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