Final answer:
Email communication about a government contract can be both FCI and CUI, depending on the content and nature of the information being shared.
Step-by-step explanation:
Email communication about a government contract can be both FCI (Federal Contract Information) and CUI (Controlled Unclassified Information), depending on the content and nature of the information being shared. FCI refers to information that is not intended for public release and is provided by or generated for the government under a contract to develop or deliver a product or service. CUI, on the other hand, refers to information that requires safeguarding or dissemination controls, as determined by the U.S. government. To determine if the email communication falls under FCI or CUI, it would be necessary to assess the specific requirements and guidelines set by the government agency involved in the contract.