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.
Diagnostic information for administrators:
ocal/DC=DO MAIN:SERVE R[578:0x00 0004DC:0x0 000001D] #SMTP#
|Active Directory is all messed up somehow, Naming information cannot be lcoated||20||38|
|Why this mailbox recipient does not have the mailbox database?||15||24|
|Server 2012 RODC is caching all accounts - including administrator accounts||18||37|
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