452 4.3.1 Insufficient system resources (UsedVersionBuckets[F:\Exchsrvr\TransportRoles\data\Queue\ma


Hi team,

We have the subjected error message generated from an application trying to send mails, i understand this is an issue due to usedversionBuckets from Backpressure rejecting the messages of application.


However, my concern is we have a pool of exchange servers sitting behind the load balancer smtp-relay, and i am not sure how to check on which exchange server rejected the mail from this application, through technet i got to know that we will have to look for Event ids 15004 & 15005. but, we have around 60 exchange servers and not sure how to check which exchange server amongst these rejected the mails

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