We are getting the below error while trying to send test emails to all users other than SA users. please suggest if it is the timeout that is the issue or is there something else that needs to be configured here.
This request operation sent to net.tcp://localhost:2660/CoreService/201501/netTcp did not receive a reply within the configured timeout (00:01:00).
The time allotted to this operation may have been a portion of a longer timeout.
This may be because the service is still processing the operation or because the service was unable to send a reply message.
Please consider increasing the operation timeout (by casting the channel/proxy to IContextChannel and setting the OperationTimeout property) and ensure that the service is able to connect to the client.