Symptoms

Again we are not getting the task notifications.
On event log continuos error:
Exception: System.TimeoutException: The pipe connection was aborted because an asynchronous read from the pipe did not complete within the allotted timeout of 00:02:00. The time allotted to this operation may have been a portion of a longer timeout. ---> System.IO.PipeException: The operation cannot be completed because the pipe was closed. This may have been caused by the application on the other end of the pipe exiting.

0 Mail send failure: EWS URL is not valid. Verify the connection strings are correct. Exception: The request failed. The underlying connection was closed: Could not establish trust relationship for the SSL/TLS secure channel.

but when im connecting the asmx url it works fine


 

Diagnoses

the ews url was not wrking from the K2 server so we changed it to a working one and this helped resolve the issue
 

Resolution

Resolution:
"
After changing the EWS url to mymail and restart of the service, works fine.
"