Dr. 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 and Samuel Johnson to produce the computer security tools SATAN and The Coroner's Toolkit.
He studied physics at the University of Groningen, graduating with a PhD. He spent 12 years at Eindhoven University as a systems architect in the Mathematics and Computer Science department, and spent part of this time writing tools for Electronic Data Interchange. Since emigrating to the U.S. in 1996 he has been working for the IBM Thomas J. Watson Research Center in New York State.
In his spare time he enjoys hiking and cycling with his wife, Annita.
Awards Venema has received for his work: