Cisco 300-720 Based on Real Exam Environment

Determining Which Interface is Used for Mail Delivery Unless you specify the output interface via the deliveryconfig command or via a message filter ( alt-src-host ), or through the use of a virtual gateway, the output interface is selected by the AsyncOS routing table. https://www.cisco.com/c/en/us/td/docs/security/esa/esa11-1/user_guide/b_ESA_Admin_Guide_11_1/b_ESA_Admin_Guide_chapter_011001.html?bookSearch=true

Secure unsubscribe option for end users. Mimicking an unsubscribe option is a popular phishing technique. For this reason, the end users are generally wary of clicking unknown unsubscribe links. For such scenarios, the cloud-based Unsubscribe Service extracts the original unsubscribe URI, checks the reputation of the URI, and then performs the unsubscribe process on behalf of the end user. This protects end users from malicious threats masquerading as unsubscribe links. https://www.cisco.com/c/en/us/td/docs/security/esa/esa14-2-1/User_Guide/b_ESA_Admin_Guide_14-2-1/b_ESA_Admin_Guide_12_1_chapter_01110.html#id_101033

External spam quarantine is a feature that allows Cisco SMA to store and manage spam messages quarantined by multiple Cisco ESAs in one central location, providing a unified view and administration of the spam quarantine data.

References: User Guide for AsyncOS 15.0 for Cisco Secure Email Gateway, page 10-3.

A filter is a method that enables an engineer to deliver a flagged message to a specific virtual gateway address in the most flexible way. A filter is a rule that allows Cisco ESA to perform actions on messages based on predefined or custom conditions, such as headers, envelope, body, attachments, etc.

To deliver a flagged message to a specific virtual gateway address using a filter, the engineer can create a content filter or message filter that matches the flag condition and applies an action of “deliver via alternate host” with the virtual gateway address as the parameter.

The other options are not methods that enable an engineer to deliver a flagged message to a specific virtual gateway address in the most flexible way, because they have more limitations or requirements than using a filter.

References: User Guide for AsyncOS 15.0 for Cisco Secure Email Gateway, page 8-3 and page 8-7.