After moving the K2 database from SQL 2012 to SQL 2016, the following error appears:
"61012 Exception from message source [Email]: System.Net.WebException: The request failed with HTTP status 401: Anonymous Request Disallowed."
This issue was caused by a missing password in the EWS Connection String.
To resolve this issue:
- Update the password in the ConnectionStringEditor located in [K2 blackpearl\Host Server\Bin]
- Restart the K2 Service.