432 4.3.2 STOREDRV.Deliver; recipient thread limit exceeded

E-mail delays? Its likely throttling is occuring.
– Check connectivity logs under transport log folder

Error reporting 432 4.3.2 STOREDRV.Deliver; recipient thread limit exceeded.

Add the following code to EdgeTransport.exe.config file located in C:\Program Files\Microsoft\Exchange server\V14\Bin

Restarted the Hub Transport service, wait a few seconds. +1 as needed, Microsoft Support did not recommend anything higher than 7.
I suggest cycling Hub Transport services as needed to flush out any remaining emails queued up.

Additionally, you can check MMC > Queue Viewer for any corrupt e-mails by setting filter for Status = Active.
This will display all the e-mails that are actively being processed by the server, by hitting F5 or refreshing you can identify the e-mails in question (corrupt or poisioned?).

If adding the values did not help, You can use exterme mesures to flushing out e-mails, by adding the following code to EdgeTransport.exe.config:

Restarted the Hub Transport service, wait a few seconds. Once the queue has flushed, return the values to the original or recommended above.

epic
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Contributer and Author Enterprise Communications Engineer Hi Epic

testest test 

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