Logging of all message bodies is enabled in the registry, which may be a privacy concern. The "%1" registry key is defined ...

Logging of all message bodies is enabled in the registry, which may be a privacy concern.

The "%1" registry key is defined on this server and is set to a non-zero value.
Cause: This is a configuration problem that might be a privacy concern.
Resolution:
Delete the registry key when the logging of all message bodies is no longer needed.