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Don_Vlogeer's avatar
Don_Vlogeer
Brass Contributor
Jun 10, 2022

432 4.3.2 STOREDRV.Deliver; recipient thread limit exceeded exchange 2016

Hi Guys, 

 

Recently I am getting 432 4.3.2 STOREDRV.Deliver; recipient thread limit exceeded on my exchange server 2016 and internal email are stuck in queue for a long time. Eventually the email will be delivered to mailbox but it take times like 1 or 2 hours. 

 

I googled around and does not fund anything specific on this error. 

 

Seeking some advice, what shoul

  • After digging, the issue is because one of our server performing very badly. This server is not performing best and eventually we fine tune the hardware and mail flow issue not reappearing
  • Don_Vlogeer's avatar
    Don_Vlogeer
    Brass Contributor
    After digging, the issue is because one of our server performing very badly. This server is not performing best and eventually we fine tune the hardware and mail flow issue not reappearing
    • Gavin Meerwald's avatar
      Gavin Meerwald
      Copper Contributor
      Can you provide some insight as to what performance problems you were seeing with the hardware?
      We have a similar issue that has started happening out-of-the-blue with no (known) changes to hardware.
      • abdullah220's avatar
        abdullah220
        Copper Contributor
        Need help ...
        Issue :

        "email is backing up in the Exchange Submission Queue and the following errors are displayed in Queue Viewer:
        432 4.3.2 storedriver component has been retired
        432 4.3.2 STOREDRV.Deliver; mailbox database thread limit exceeded"

        mail flow is stopped and added below values still same issue.

        any suggestion....

        <add key=”MailboxDeliveryThrottlingEnabled” value=”False” />
        <add key=”RecipientThreadLimit” value=”2″ />
        <add key=”MaxMailboxDeliveryPerMdbConnections” value=”3″ />

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