Thursday, January 12, 2017

Exchange Error-432 4.3.2 STOREDRV.Deliver; recipient thread limit exceeded


Email stuck up in the Exchange Submission Queue with errors are displayed in Queue Viewer "432 4.3.2 STOREDRV.Deliver; recipient thread limit exceeded"

This issues could be a large volume of emails to Public Folder. In these cases, administrators will see mail queues with the this error.

Some time this issues occur due to throttling/back pressure, but we have to dig dive the issues before going to conclude. Also Exchange 2010 SP1 Exchange Team written post for "Store Driver Fault Isolation Improvements in Exchange 2010 SP1" which gives good understanding the Store drive and related issues and solutions.


Solution which i executed to create the following two keys to the EdgeTransport.exe.config file (\Program Files\Microsoft\Exchange server\V15\Bin).

For Exchange 2013/2016 these two keys need to be added to the MSExchangedelivery.exe.config file located in the same folder!

After adding the keys, restart both the Microsoft Exchange Transport (MSExchangeTransport) and Microsoft Exchange Mailbox Transport Delivery (MSExchangeDelivery) services.


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