300-720 Exam Dumps : Securing Email with Cisco Email Security Appliance (300-720 SESA)

Configuring the outbound firewall rule to permit traffic on port 3237 is the additional action that resolves the issue. AMP file reputation is a feature that allows Cisco ESA to check files attached to messages against a cloud-based database of known malicious files and apply appropriate actions, such as block, deliver, or quarantine.

By default, AMP file reputation uses TCP port 3237 to communicate with the cloud-based database. If this port is blocked by a firewall, AMP file reputation will not work properly.

To resolve this issue, the administrator can configure the outbound firewall rule to permit traffic on port 3237 from Cisco ESA.

The other options are not valid actions to resolve the issue, because they do not affect the port used by AMP file reputation.

References: [User Guide for AsyncOS 15.0 for Cisco Secure Email Gateway], page 7-5 and page 7-6.

Outbreak filters and antivirus are two features that can be applied to either incoming or outgoing mail policies on Cisco ESA. Outbreak filters allow Cisco ESA to detect and block messages that contain new or emerging email threats, such as viruses, worms, phishing, or spam, by using real-time updates from Talos intelligence. Antivirus allows Cisco ESA to scan messages for known viruses and malware using one or two antivirus engines (Sophos and McAfee).

References: User Guide for AsyncOS 15.0 for Cisco Secure Email Gateway, page 6-16 and page 7-2.

The safelist is a list of email addresses or domains that are considered legitimate and trustworthy by Cisco ESA. When an email is received from a sender on the safelist, Cisco ESA skips antispam scanning for that message and delivers it to the recipient without any spam filtering.

References: User Guide for AsyncOS 15.0 for Cisco Secure Email Gateway, page 6-13.