qmail-remove 
qmail-remove [options]
  -e            use extended POSIX regular expressions
  -h, -?        this help message
  -i            search case insensitively [default: case sensitive]
  -n <bytes>    limit our search to the first <bytes> bytes of each file
  -p <pattern>  specify the pattern to search for
  -q <queuedir> specify the base qmail queue dir [default: /var/qmail/queue]
  -d            actually remove files not yank them, no -p will delete all the messages!
  -r            actually remove files, without this we'll only print them
  -s <split>    specify your conf-split value if non-standard [default: 23]
  -v            increase verbosity (can be used more than once)
  -y <yankdir>  directory to put files yanked from the queue [default: <queuedir>/yanked]
  -X <secs>     modify timestamp on matching files, to make qmail expire mail
                 <secs> is the number of seconds we want to move the file into the past.
                 specifying a value of 0 causes this to default to (604800)
  -x <timespec> modify timestamp on matching files, to make qmail expire mail
                 <timespec> is a date/time string in the format of output of the "date" program.
                 see manpage for strptime(2) for details of this format