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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.

The safelist/blocklist (SLBL) is a feature that allows Cisco ESA to accept or reject messages from specific email addresses or domains, based on the configuration of mail flow policies or end user preferences.

The action that provides direct access to view the SLBL on Cisco ESA is to export the SLBL to a .csv file, which can be done from the web user interface by selecting Security Services > Safelist/Blocklist and clicking Export.

The other options do not provide direct access to view the SLBL on Cisco ESA.

References: User Guide for AsyncOS 15.0 for Cisco Secure Email Gateway, page 6-13 and page 6-14.

ceo@example.com is the data that must be added to the dictionary to accomplish this goal. A content dictionary is a list of values that can be used as a condition in a content filter or a message filter. Forged Email Detection is a feature that allows Cisco ESA to detect and prevent email spoofing attacks, where the sender’s address or domain is forged to appear as someone else, such as the CEO of the organization.

To create a content dictionary for use with Forged Email Detection on Cisco ESA, the administrator can follow these steps:

• Select Mail Policies > Content Dictionaries and click Add Dictionary.
• Enter a name and description for the content dictionary, such as CEO Email.
• Under Dictionary Values, click Add Value.
• Enter the email address of the CEO, such as ceo@example.com.
• Click Submit.

The default port to deliver emails from the Cisco ESA to the Cisco SMA using the centralized Spam Quarantine is 6025. This is the default value for the Port setting in the External Spam Quarantine configuration on Cisco ESA. This port must be open on both Cisco ESA and Cisco SMA for the communication to work.

References: User Guide for AsyncOS 15.0 for Cisco Secure Email Gateway, page 10-4.