Event ID 1006

KB ID 0001425


Seen on an Exchange 2016 Server

Event ID 1006

Log Name:      Application
Source:        MSExchangeDiagnostics
Date:          XX/XX/XXXX XX:XX:XX
Event ID:      1006
Task Category: Triggers
Level:         Error
Keywords:      Classic
User:          N/A
Computer:      EX2016
The performance counter '\\EX2016\MSExchange Assistants - Per Database(msexchangemailboxassistants-2016-mailbox-database)\Event Dispatchers Catching Up' sustained a value of '1,740.00', for the '30' minute(s) interval starting at '12/04/2018 08:35:00'. Threshold breached since '06/04/2018 12:05'. None Trigger Name:EventDispatchersCatchupQueueTrigger. Instance:msexchangemailboxassistants-2016-mailbox-database-p-z



After some research it seems this is a cosmetic error, and can be disabled/suppressed. Navigate to {drive letter}:\Program Files\Microsoft\Exchange Server\V15\Bin\ and locate Microsoft.Exchange.Diagnostics.Service.exe.config.

Exchange config File

Locate the line that mentions CatchupQueueTrigger.

Exchange CathchupQueueTrigger

Change its value to ‘false’. Save the file and exit.

Fix Exchange Event 1006

Locate the Microsoft Exchange Diagnostics service (Windows Key +R > services.msc {Enter}) and restart it.

Restart Exchange Diagnostic Service


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Author: PeteLong

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