An administrator identifies that, over the past week, the Cisco ESA is receiving many emails from certain senders and domains which are being consistently quarantined. The administrator wants to ensure that these senders and domain are unable to send anymore emails.
Which feature on Cisco ESA should be used to achieve this?
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].
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