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NSE4 · Question #213
NSE4 Question #213: Real Exam Question with Answer & Explanation
The correct answer is A: TCP connection. The POP3 and IMAP proxies on a FortiGate inspect the content of email messages, including attachments, headers, and body, but do not directly inspect the underlying TCP connection itself.
Submitted by yuriko_h· Apr 18, 2026Security Profiles and Content Inspection
Question
Which part of an email message exchange is NOT inspected by the POP3 and IMAP proxies?
Options
- ATCP connection
- BFile attachments
- CMessage headers
- DMessage body
Explanation
The POP3 and IMAP proxies on a FortiGate inspect the content of email messages, including attachments, headers, and body, but do not directly inspect the underlying TCP connection itself.
Common mistakes.
- B. File attachments are a primary target for inspection by POP3 and IMAP proxies, especially for antivirus and data loss prevention.
- C. Message headers contain crucial information like sender, recipient, and subject, which are inspected by proxies for spam, phishing, and policy enforcement.
- D. The message body contains the main content of the email and is thoroughly inspected for malware, spam, and sensitive information by the proxies.
Concept tested. POP3/IMAP proxy inspection scope
Reference. https://docs.fortinet.com/document/fortigate/7.4.0/administration-guide/523930/proxy-inspection
Topics
#Email security#POP3/IMAP proxy#Content inspection#Application layer security
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