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CAS-005 · Question #481

A systems administrator is working with clients to verify email-based services are performing properly. The administrator wants to have the email server digitally sign outbound emails using the…

The correct answer is B. DKIM. DKIM (DomainKeys Identified Mail) uses a private key to digitally sign outbound emails, allowing recipients to verify the authenticity of the sender using the corresponding public key published in

Submitted by salim_om· Mar 6, 2026Security Engineering

Question

A systems administrator is working with clients to verify email-based services are performing properly. The administrator wants to have the email server digitally sign outbound emails using the organization's private key. Which of the following should the systems administrator configure?

Options

  • ASPF
  • BDKIM
  • CDMARC
  • DTLS

How the community answered

(54 responses)
  • A
    6% (3)
  • B
    91% (49)
  • C
    2% (1)
  • D
    2% (1)

Explanation

DKIM (DomainKeys Identified Mail) uses a private key to digitally sign outbound emails, allowing recipients to verify the authenticity of the sender using the corresponding public key published in

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