A few IUPOP3 utilities:

popstat.c   - C program for VMS and UNIX to gather IUPOP3 statistics

popstat.sh  - /bin/sh script for UNIX to run the popstat program for a
              series of hosts running IUPOP3

popstat.com - DCL script for VMS to run the popstat program for a 
              series of hosts running IUPOP3