Exam 300-720 topic 1 question 110 discussion

A is the correct answer. Look at "Authentication Options for End Users Accessing Spam Management Features" section. In the Spam Notifications settings, deselect or select Enable login without credentials for quarantine access. https://www.cisco.com/c/en/us/td/docs/security/esa/esa12-0/user_guide/b_ESA_Admin_Guide_12_0/b_ESA_Admin_Guide_12_0_chapter_0100000.html

D. Change the end user quarantine access setting from None authentication to Mailbox. By changing the end user quarantine access setting to Mailbox, the Cisco ESA will require users to authenticate themselves before accessing the quarantine. This authentication can be achieved through methods such as username and password credentials or single sign-on (SSO) integration with an existing authentication system. Options A and B mentioned in your question are related to SPAM notification and configuring the quarantine URL, but they do not specifically address end user authentication. Option C, changing the end user quarantine access to SAAS, is not relevant to enforcing end user authentication on the Cisco ESA.