There are a few articles online about this error, but none were correct for the scenario i found a clients network in. Not that I think the specifics matter, but this was Exchange Server 2016, Windows Domain Controllers running 2012 R2 and Exchange Hybrid. All the mailboxes had already moved to the cloud and the Exchange Server is used for attribute management and SMTP relay. Sometimes, randomly it would seem, the applications fail to send […]
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