Symptoms
In Microsoft Exchange Server 2019 or Exchange Server 2016, when the journaling mailboxbecomes available again, you try to use the Resend this message feature in Outlook on the NDRs in the alternate journaling mailbox to send the unaltered delivery reports to the journaling mailbox. However, it fails, and you receive the following error message:
Remote server returned 550 5.71 sender is not authorized to submit general reports.
Resolution
To fix this issue, install one of the following updates:
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The Cumulative Update 3 for Exchange Server 2019 or a later cumulative update for Exchange Server 2019.
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The Cumulative Update 14 for Exchange Server 2016 or a later cumulative update for Exchange Server 2016.
References
Learn about the terminology that Microsoft uses to describe software updates.
