Return
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Title
A communication failure or interruption was encountered -
Description
A warning gets generated as follows:
WARN logging [Proxy 6517] - Message Number [6517] on Thread [16] from Exchange (xx.xx.xx.xx) to Domino (xx.xx.xx.xx): A communications failure or interuption was encountered. - IOException: Unable to write data to the transport connection: An existing connection was forcibly closed by the remote host.
Stack Trace: at System.Net.Sockets.NetworkStream.Write(Byte[] buffer, Int32 offset, Int32 size)at CMX.API.Core.Networking.SecureSocket.Write(Byte[] buffer, Int32 offset, Int32 size)at CMX.API.Core.Networking.SecureSocket.Write(String data)at CMX.API.Core.Networking.Smtp.ServerProtocol.SendResponse(TrimmedString response)at CMX.API.Core.Networking.Smtp.Proxy.Run()at CMX.API.Core.Networking.Smtp.Proxy.<Start>b__0() -
Resolution
RESOLUTION:
The root cause is that when Office 365, as client, sends message to Domino through CMNit would close the transmission channel directly after Sending command "QUIT".And this warning gets generated during stopping the involved thread.You can just ignore it.