Download Securing Email with Cisco Email Security Appliance.300-720.Pass4Success.2025-12-28.101q.tqb

To enable domain protection for the organization, the administrator must configure an outgoing mail policy that matches the sender and the from headers of the email. The sender header is the envelope sender address that is used by SMTP to route the email. The from header is the address that is displayed to the recipient as the source of the email. These headers are used to generate and verify a DomainKeys Identified Mail (DKIM) signature, which is a cryptographic method of validating the authenticity and integrity of an email message.The other headers are not relevant for domain protection. The message-ID header is a unique identifier for each email message. The URL reputation header is a score that indicates the likelihood of a URL being malicious. The mail-from header is an alias for the sender header.Domain ProtectionDKIM Signing

The content filter condition that checks to see if the ''From: header'' in the message is similar to any of the users in the content dictionary is Forged Email Detection. This condition compares the sender's name or email address with a list of names or email addresses in a content dictionary and triggers an action if they match or are similar.Reference: [Cisco Secure Email Gateway Administrator Guide - Forged Email Detection]

Content filters are rules that allow Cisco ESA to perform actions on messages based on predefined or custom conditions, such as headers, envelope, body, attachments, etc.The two primary components of content filters are:Conditions, which are the criteria that determine whether a message matches a content filter rule or not, such as message size, sender address, attachment type, etc.Actions, which are the operations that Cisco ESA performs on a message if it matches the conditions of a content filter rule, such as deliver, drop, quarantine, encrypt, etc.The other options are not primary components of content filters on Cisco ESA.

The feature that must be configured before an administrator can use the outbreak filter for nonviral threats is antispam. The outbreak filter relies on the antispam engine to detect and block nonviral threats, such as phishing, malware, or spam campaigns. You need to enable antispam scanning and configure the antispam settings before you can use the outbreak filter.

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_011001.htmlone of the steps to accept mail for additional internal domains on the Cisco ESA is to choose Network > SMTP Routes and enter the new domain and the corresponding destination host IP address1.This can also be done using the smtproutes command in the CLI1. The other commands (deliveryconfig, dsestconf, and altrchost) are not related to this task.

When CRES (Cisco Registered Envelope Service) is unavailable, Cisco ESA will requeue the message and attempt to resend it later, until the maximum number of retries or the maximum age of the message is reached. The message will not be sent in clear text, dropped, or encrypted by another appliance.

According to the [Cisco Secure Email User Guide], graymail is a category of email messages that are not spam but may be unwanted by some recipients, such as newsletters, promotions, or social media updates[5, p. 25]. Marketing is one of the subcategories of graymail that includes messages that advertise products or services[5, p. 26].The other options are not valid because:A) Malicious is not a category for classifying graymail. It is a category for classifying email messages that contain malicious content such as malware, phishing, or fraud[5, p. 25].C) Spam is not a category for classifying graymail. It is a category for classifying email messages that are unsolicited, unwanted, or harmful[5, p. 25].D) Priority is not a category for classifying graymail. It is a category for classifying email messages that are important, urgent, or relevant[5, p. 25].

If the assigned certificate under one of the IP interfaces is modified, then the HTTPS traffic when connecting to the web user interface of the Cisco Secure Email Gateway will be impacted. The administrator must ensure that the certificate is valid and trusted by the browser or client that is used to access the web user interface. Otherwise, the connection may fail or generate a warning message.Reference: [Cisco Secure Email Gateway Administrator Guide - Configuring Certificates]

Spam Quarantine End-User Authentication Query is a query that Cisco ESA performs against an LDAP server to validate the end-user credentials during login to the End-User Quarantine.

Relay is the connection behavior that must be selected to properly process the messages. Relay allows Cisco ESA to accept messages from the specified source and deliver them to the intended destination, without applying any content or reputation filters.To configure a mail flow policy with relay connection behavior on Cisco ESA, the administrator can follow these steps:Select Mail Policies > Mail Flow Policies and click Add Policy.Enter a name and description for the mail flow policy, such as Exchange Outbound.Under Connection Behavior, select Relay.Click Submit.The other options are not valid connection behaviors to properly process the messages, because they either reject, delay, or accept the messages with content or reputation filters applied.