I have tried below all commands in Exchange power shell, but still users receives the same error message when trying to send on behalf of distribution list. Please help
Get-DistributionGroup "SOperations" | fl name,grant*
Set-DistributionGroup “SOperations” –GrantSendonBehalfTo “XXXUser”
Set-DistributionGroup “SOperations” –GrantSendonBehalfTo “SOperations” (to allow all users in the group)
Error for user:--Delivery has failed to these recipients or groups: You
can't send a message on behalf of this user unless you have permission to do so. Please make sure you're sending on behalf of the correct sender, or request the necessary permission. If the problem continues, please contact your helpdesk.