Store Driver Fault Isolation Improvements in Exchange 2010 SP1

Hi guys, Good evening, can you help me with a question I have, I am not that experienced in exchange, but I have a topic with this NDR 432 4.3.2 STOREDRV.Deliver; recipient thread limit exceeded, but my boss does not authorize me to use this solution to add those two lines to the edge transport, which because he saw in another forum that it is not functional. The link where he indicates that it is not useful to do that solution is: https://social.technet.microsoft.com/Forums/exchange/en-US/022acffe-d80d-4fd6-8c01-2bc5f020ec91/432-432-storedrvdeliver- recipient-thread-limit-exceeded-in-the-queue-of-mails-exchange-2010? forum = exchange2010 Our environment is different from that of the boy in question, we have two servers and the roles are divided in Mailbox and CAS / HUB, Exchange 2010 SP1 Rollup 32. We do not have a DAG like him. And another question I have is that those two lines would be added, only to the cas / hub server or I also add them to the mailbox server, since both servers have the same file in the same path: E: \ Program Files \ Microsoft \ Exchange Server \ V14 \ Bin \ EdgeTransport.exe.config I do not know if it is too much to ask that you support me in indicating how they reproduced the error that appears in figure 1 of this blog. To apply the solution in my laboratory and show that it works. Awaiting your kind reply and thanks for your attention. Best regards.