The following example shows displaying the most frequently
      occurring Subject: and envelope From: addresses amongst
      messages in the PMDF queue area.

 $ PMDF QTOP/SUBJECT/ENV_FROM
 %QM-I-QCLISTING, building a list of message files to scan from the queue cache
 %QM-I-SCANNING, scanning 73 message files
 %QM-I-SCANNED, scanned 73 message files in 0.5600 seconds (130.36 messages/secon
 d)
 Top 20 Envelope From: addresses which occur 2 or more times
  Count  Envelope From: address
     27
     10  owner-ex-list@example.com
      2  owner-test-list@example.com

 Top 20 Subject: header lines which occur 2 or more times
  Count  Subject
      6  Re: your ex-list posting
      2  Test posting to test-list

      The following example shows displaying the most frequently
      occuring Subject: lines that occur 20 times or more, starting
      from 12 characters into the Subject: header value. This may be
      useful when trying to spot spam that inserts random characters
      at the beginning of the SUBJECT: header value.

 $ PMDF QTOP/SUBJECT=START=12/MIN_COUNT=15
 %QM-I-QCLISTING, building a list of message files to scan from the queue cache
 %QM-I-SCANNING, scanning 73 message files
 %QM-I-SCANNED, scanned 73 message files in 0.5600 seconds (130.36 messages/secon
 d)
 Top 20 Subject: header lines which occur 15 or more times
  Count  Subject
     25  ake money fast $$$