Which command, available with all MTAs, is used to list the contents of the MTA's mail queue? (Specify ONLY the command without any path or parameters.)
Answer: mailq
題解
所有的MTA都可以使用「mailq」(/usr/bin/mailq)指令來列出信件佇列的內容。除了「mailq」指令之外其實也可以使用「sendmail -bp」(/usr/lib/sendmail -bp)。