May 04 2020 04:08 PM
Hello people,
I have integrated the Dynamics 365 with exchange on premises 2013 and after entering the correct setting I was able to test the connectivity which passes. But when any users try to send emails via dynamics 365 they are getting the error below:
Error : Microsoft.Exchange.WebServices.Data.ServiceRequestException: The request failed. The underlying connection was closed: An unexpected error occurred on a receive. ---> System.Net.WebException: The underlying connection was closed: An unexpected error occurred on a receive. ---> System.IO.IOException: Unable to read data from the transport connection: An existing connection was forcibly closed by the remote host. ---> System.Net.Sockets.SocketException: An existing connection was forcibly closed by the remote host