Either Party may disclose Confidential Information to the other Party in  confidence provided that the disclosing Party identifies such information as proprietary  and confidential either by marking it, in the case of written materials, or, in the case of  information that is disclosed orally or written materials that are not marked, by notifying  the other Party of the proprietary and confidential nature of the information, such  notification to be done orally, by e-mail or written correspondence, or via other means of  communication as might be appropriate.