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I'm getting below error for some of the users in nprinting when trying to deliver the email. Can anyone help me on how to fix this?
ERROR: 4.3.2 The maximum number of concurrent connections has exceeded a limit, closing transmission channel. Stack trace
Thanks
Hi,
This seems like an OS issue. Perhaps look at this:4.3.2 The maximum number of concurrent connections has exceeded a limit, closing trasmission channel
or
https://jaapwesselius.com/2013/10/25/maximum-number-of-concurrent-connections-has-exceeded-a-limit/
how many connections you have created on single app?
You're most probably trying to send too many emails at the same time through an Exchange server, and Exchange doesn't like that. Either increase the limit of allowed connections, or split your email processing into smaller batches.
I agree.