In the following example, the DIRECTORY/HELD command is used to
      list held messages in the tcp_local channel. Then, the RELEASE
      command is used to release all of the held messages from that
      channel.

  qm.maint> DIRECTORY/HELD TCP_LOCAL
  Fri, 15 Nov 2012 13:43:39 PDT
  Data gathered from the queue directory tree

  Channel: tcp_local                Size Queued since
  --------------------------------------------------------------
      1 ZZ01HNP17LSUWY9D4DNR.HELD      4 13-NOV-2012 03:12:00
      2 ZZ01HNP1RP3B6G9D4DNR.HELD     10 14-NOV-2012 11:46:23
      3 ZZ01HNP42MAMAI9D4DNR.HELD      5 14-NOV-2012 18:17:01
  --------------------------------------------------------------
  Total size:                         19

  3 total messages queued
  qm.maint> RELEASE/ALL
  Release all message files (Y/N, default is N)? YES
  %QM-I-RELEASED, released the message file
     PMDF_QUEUE:[TCP_LOCAL]ZZ01HNP17LSUWY9D4DNR.HELD
  %QM-I-RELEASED, released the message file
     PMDF_QUEUE:[TCP_LOCAL]ZZ01HNP1RP3B6G9D4DNR.HELD
  %QM-I-RELEASED, released the message file
     PMDF_QUEUE:[TCP_LOCAL]ZZ01HNP42MAMAI9D4DNR.HELD
  qm.maint>