⚠️ Retired / Legacy Exam: This exam has been retired or replaced. These practice questions are kept for reference only. Please check the official vendor website for current exam versions before studying.
A security administrator wants to allow external organizations to cryptographically validate the company’s domain name in email messages sent by employees.
Which of the following should the security administrator implement?
A. SPF
B. S/MIME
C. TLS
D. DKIM
Correct Answer: D