/BEFORE=dd-mmm-yyyy:hh:mm:ss

    By default, all messages are migrated. The /BEFORE qualifier can
    be used to only migrate those messages stored on or before the
    specified time. For instance, to migrate all messages received
    between 08:30 and 13:00 on 15 November 2012, specify

    /SINCE=15-NOV-2012:8:30:00 /BEFORE=15-NOV-2012:13:00:00