CompTIA
LX0-104 · Question #473
LX0-104 Question #473: Real Exam Question with Answer & Explanation
The correct answer is B: Set up a ruleset for this in /etc/sendmail.cf. See the full explanation below for the reasoning.
Question
To avoid spammers using your mail server to relay their messages, you need to _______.
Options
- ADisable the relay control in /etc/aliases
- BSet up a ruleset for this in /etc/sendmail.cf
- CSet up relay control in your DNS's MX record.
- DRecompile sendmail with the -NORELAY flag.
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