Listing queued mail | LinuC Level 1 102 Exam original practice question

1.09.3Basic

List messages remaining in the local MTA delivery queue without modifying them.

Which command is appropriate?

Hint 1: Focus on mail roles

Separate alias expansion, user forwarding, message submission, queue inspection, and MTA routing roles.

Hint 2: Key terms

Review the short definitions of alias expansion, forwarding, submission, queueing, and delivery involved.

mailq: A command that displays messages waiting in the mail queue.
Mail queue: The set of messages waiting for an MTA to deliver them.
Queue ID: An identifier assigned to a queued message for later inspection or control.
Delivery status: The state or reason associated with a queued message's delivery attempt.

Detailed explanation

Incorrectmail

Incorrect. mail accesses a user's mailbox.

Correctmailq

Correct. mailq lists the delivery queue.

Incorrectnewaliases

Incorrect. newaliases rebuilds alias data.

Incorrectlogger

Incorrect. logger sends a syslog message.

An example you can run in a temporary verification environment.

mailq --help 2>&1 | sed -n '1,8p'

mail queue表示の使用方法またはMTA情報

Foundation review

A mail transfer agent that accepts, routes, and queues messages.

Rules that map a local address to one or more delivery destinations.

Temporary storage for messages waiting to be delivered or retried.

Question IDKL-102-1112

Environmentmailq help / queue照会なし

Last technical review2026-08-13

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