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A security technician is testing a solution that will prevent outside entities from spoofing the company's email domain, which is compatia.org. The testing is successful, and the security technician is prepared to fully implement the solution. Which of the following actions should the technician take to accomplish this task?
Correct Answer: A
Adding TXT @ "v=spfl mx include:_spf.comptia. org -all" to the DNS record can help to prevent outside entities from spoofing the company's email domain, which is comptia.org. This is an example of a Sender Policy Framework (SPF) record, which is a type of DNS record that specifies which mail servers are authorized to send email on behalf of a domain. SPF records can help to prevent spoofing by allowing the recipient mail servers to check the validity of the sender's domain against the SPF record. The "-all" at the end of the SPF record indicates that any mail server that is not listed in the SPF record is not authorized to send email for comptia.org .