Free NSE6_FML-6.4: Fortinet NSE 6 - FortiMail 6.4 Exam Questions and Answers
16 verified practice questions for NSE6_FML-6.4.
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Last updated: September 19, 2026
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Question #1
Refer to the exhibit. Which statement describes the pre-registered status of the IBE user extuser2@external.lab?
Please select an optionIncorrectCorrect answer: C
Reference: https://docs.fortinet.com/document/fortimail/6.4.2/administrationguide/470401/configuring-ibe- users
Was this answer correct?Question #2
Refer to the exhibit. Which two statements about the access receive rule are true? (Choose two.)
Select 2 answers.
Please select an optionIncorrectCorrect answer: A, B
The rule's action is Relay, so matching messages are relayed, and because the sender pattern is restricted to example.com the envelope sender must be an example.com address; authentication is not required and the sender IP is not limited to that subnet.
Was this answer correct?Question #3
If you are using the built-in MTA to process email in transparent mode, which two statements about FortiMail behavior are true? (Choose two.)
Select 2 answers.
Please select an optionIncorrectCorrect answer: C, D
With the built-in MTA, FortiMail terminates the SMTP session, so it can queue undeliverable mail and issue delivery status notifications, and it performs its own MX lookup instead of honoring the destination chosen by the sender.
Was this answer correct?Question #4
Which firmware upgrade method for an active-passive HA cluster ensures service outage is minimal, and there are no unnecessary failovers?
Please select an optionIncorrectCorrect answer: C
Reference: https://docs.fortinet.com/document/fortimail/6.2.0/administrationguide/725928/upgrading-firmware- on-ha-units
Was this answer correct?Question #5
A FortiMail administrator is investigating a sudden increase in DSNs being delivered to the protected domain for undeliverable email messages. After searching the logs, the administrator identifies that the DSNs were not generated as a result of any outbound email sent from the protected domain. Which FortiMail antispam technique can the administrator use to prevent this scenario?
Please select an optionIncorrectCorrect answer: B
Reference: https://docs.fortinet.com/document/fortimail/6.2.0/administrationguide/769204/managing-the-mail- queue
Was this answer correct?Question #6
While testing outbound MTA functionality, an administrator discovers that all outbound email is being processed using policy IDs 1:2:0. Which two reasons explain why the last policy ID value is 0? (Choose two.)
Select 2 answers.
Please select an optionIncorrectCorrect answer: C, D
The third value is the recipient policy ID; a 0 means none was matched, which happens when no outgoing recipient policy exists, and without outbound access delivery rules the session is not treated as outgoing policy traffic.
Was this answer correct?Question #7
Refer to the exhibit. What are two expected outcomes if FortiMail applies this antivirus action profile to an email? (Choose two.)
Select 2 answers.
Please select an optionIncorrectCorrect answer: A, B
Was this answer correct?Question #8
A FortiMail administrator is concerned about cyber criminals attempting to get sensitive information from employees using whaling phishing attacks. What option can the administrator configure to prevent these types of attacks?
Please select an optionIncorrectCorrect answer: A
Impersonation analysis maps display names of executives to their genuine email addresses and flags messages where the two do not match, which is exactly the technique used in whaling attacks.
Was this answer correct?Question #9
Refer to the exhibit. For the transparent mode FortiMail shown in the exhibit, which two sessions are considered incoming sessions? (Choose two.)
Select 2 answers.
Please select an optionIncorrectCorrect answer: A, D
Was this answer correct?Question #10
Examine the FortiMail session profile and protected domain configuration shown in the exhibit; then answer the question below. Which size limit will FortiMail apply to outbound email?
Please select an optionIncorrectCorrect answer: B
domain only applies to inbound. https://kb.fortinet.com/kb/viewContent.do?externalId=FD31006&sliceId=1
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