Apple
9L0-521 · Question #12
9L0-521 Question #12: Real Exam Question with Answer & Explanation
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Question
Which of these is a blacklist server?
Options
- AA server that provides a list of known open relay servers
- BA server that blocks outgoing email to specified domains
- CA server that sends mail to a large recipient group simultaneously
- DA server that allows anyone to send email through it without authenticating
- EA server that provides a list of email addresses that are known sources of spam
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