Exam 350-701 topic 1 question 202 discussion

The correct answer is D. RAT (Recipient Access Table). The Cisco ESA (Email Security Appliance) can be used to control whether to accept or reject email messages to a recipient address. The list that contains the allowed recipient addresses is called the Recipient Access Table (RAT). The Recipient Access Table (RAT) is a list of email addresses that have been authorized to receive emails. When an email is received, the Cisco ESA checks the email address against the list in the RAT to determine whether to accept or reject the email.

Overview of the Recipient Access Table (RAT) The Recipient Access Table defines which recipients are accepted by a public listener. At a minimum, the table specifies the address and whether to accept or reject it. The Recipient Access Table (RAT) page shows a listing of the entries in the RAT including the order, default action, and whether or not the entry has been configured to bypass LDAP accept queries.

AsyncOS uses the RAT for each Public Listener for managing acceptance or rejection of recipient addresses. Recipient addresses include these: Domains Email addresses Groups of email addresses By default, the RAT rejects all recipients to prevent the creation of an open relay.