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CompTIA CAS-005 Exam - Topic 3 Question 27 Discussion

Emails that the marketing department is sending to customers are going to the customers' spam folders. The security team is investigating the issue and discovers that the certificates used by the email server were reissued, but DNS records had not been updated. Which of the following should the security team update in order to fix this issue? (Select three).
A) DMARC and B) SPF and C) DKIM
D) DNSSEC
E) SASE
F) SAN
G) SOA
H) MX

CompTIA CAS-005 Exam - Topic 3 Question 27 Discussion

Actual exam question for CompTIA's CAS-005 exam
Question #: 27
Topic #: 3
[All CAS-005 Questions]

Emails that the marketing department is sending to customers are going to the customers' spam folders. The security team is investigating the issue and discovers that the certificates used by the email server were reissued, but DNS records had not been updated. Which of the following should the security team update in order to fix this issue? (Select three).

Show Suggested Answer Hide Answer
Suggested Answer: A, B, C

by Heike at May 07, 2026, 08:43 PM

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Sharika
3 days ago
If they don’t fix this, emails will keep going to spam!
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Kenia
9 days ago
I’m worried about the implications of not updating these.
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Glory
14 days ago
Agreed! All three are crucial for email deliverability.
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India
19 days ago
I feel like DKIM should be included too.
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Shawna
24 days ago
Definitely! SPF is also a must.
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Elinore
29 days ago
This is tricky! I think DMARC is essential.
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Kenda
1 month ago
Not sure if updating all three will really fix the spam issue.
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Joaquin
1 month ago
I think MX records could be involved too.
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Evelynn
1 month ago
Wait, why would DNSSEC matter here?
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Cordelia
2 months ago
Agreed, DMARC is also crucial for deliverability!
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Kasandra
2 months ago
Definitely need to update SPF and DKIM.
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Herminia
2 months ago
From what I recall, updating the MX records might also be relevant since they direct email traffic.
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Corinne
4 months ago
I'm a bit confused about DNSSEC and how it relates to this issue. Is it really necessary to update that?
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Cyndy
4 months ago
I remember practicing a question about email authentication, and SPF was definitely one of the key components.
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Joesph
4 months ago
I think we need to look at SPF and DKIM for sure, but I'm not entirely sure about DMARC. It seems important too.
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