Wietse Venema
Wietse Venema Wietse Venema speaking at a conference in 2004 Born 1951 (age 63–64) Nationality Dutch Fields Computer science Institutions Thomas J. Watson Research Center Eindhoven University of Technology Alma mater University of Groningen Wietse Zweitze Venema (born 1951) is a Dutch programmer and physicist best known for writing the Postfix email system. He also wrote TCP Wrapper and collaborated with Dan Farmer to produce the computer security tools SATAN and The Coroner's Toolkit.