MSMQPrivacy Property MSBuild Extension Pack Help 4.0.12.0
You can specify whether the queue accepts private (encrypted) messages, non-private (non-encrypted) messages, or both. Supports Optional (default), None, Both.

Namespace: MSBuild.ExtensionPack.Communication
Assembly: MSBuild.ExtensionPack (in MSBuild.ExtensionPack.dll) Version: 4.0.0.0
See Also

Reference