Released: November 2021 Exchange Server Security Updates

Thanks for the update. Encountered some issues I am unable to resolve:

I use Email Parser to process emails. The program connects to the Exchange Server to retrieve the emails. After the last security update was applied Email Parser presented the following error: 

"Error: The request failed. The underlying connection was closed: An unexpected error occurred on a send."

I am unsure about what caused this. Concerned it has something to do with the way it communicates? TLS? SSL? Though these options are not available to Email Parser, perhaps it requires settings editing or white listing of connections?? Bit lost.

Updated 18/11 - We have decided to switch to the IMAP connection. Not always as robust, but works none the less. And is our only option for now.