In the following example, the DIRECTORY command is used to
      list the messages in the local, l, channel. Then, the HOLD
      command is used to hold messages 1, 3, 20, 21, and 22. A range
      specification, 20-22, is used to specify message numbers 20,
      21, and 22.

  qm.maint> DIRECTORY L
  Fri, 10 Mar 2012 13:43:39 PDT
  Data gathered from the queue directory tree

  Channel: l                        Size Queued since
  --------------------------------------------------------------
      1 ZZ01HNP17LSUWY9D4DNR.00        4 15-NOV-2012 01:10:23
      2 ZZ01HNP1RP3B6G9D4DNR.00       10 10-MAR-2012 01:10:24
      3 ZZ01HNP42MAMAI9D4DNR.00        3 10-MAR-2012 01:10:24
      4 ZZ01HNP4MEWC8G9D4DNR.00        8 10-MAR-2012 06:18:57
        ...
     24 ZZ01HNP90X63ZG9D4DNR.00        6 10-MAR-2012 13:21:14
  --------------------------------------------------------------

  24 total messages queued
  qm.maint> HOLD 1,3,20-22
  %QM-I-HELD, held the message file PMDF_QUEUE:[L]ZZ01HNP17LSUWY9D4DNR.00
  %QM-I-HELD, held the message file PMDF_QUEUE:[L]ZZ01HNP42MAMAI9D4DNR.00
  %QM-I-HELD, held the message file PMDF_QUEUE:[L]ZZ01HNP76RTGHY9D4DNR.00
  %QM-I-HELD, held the message file PMDF_QUEUE:[L]ZZ01HNP82HTXYB9D4DNR.00
  %QM-I-HELD, held the message file PMDF_QUEUE:[L]ZZ01HNP83JPOCV9D4DNR.00
  qm.maint>