US-based Vixie has been contributing to internet protocols and Unix systems as a designer and software architect since 1980. In 1998 he founded and is now chairmain of the board of the Internet Software Consortium. Early on he developed tools such as proxynet, rtty and cron. He is considered the main author and architect of Berkley Internet Name Domain (BIND) version 8 and the completely rewritten version 9, the open source reference implementation of the Domain Name Systems (DNS).
More recently Vixie co-founded MAPS, the Mail Abuse Protection System, a Californian non-profit company which aims to protect the email system from abuse by spammers.
Its educates and encourages ISPs to enforce terms and conditions prohibiting their customers from engaging in abusive email practices. It also vets complaints from individuals and companies about spam and if it finds someone has sent spam places the associated IP address on the Realtime Blackhole List. ISPs and companies subscribe to the list and set blocks so their servers won't accept email coming from those IP addresses.
MAPS generally defines spam as email sent in bulk to people who didn't request it, didn't have an opportunity to opt out of receiving it or whose requests for email weren't verified.
Vixie is currently the chief technology officer of Metromedia Fiber Network, a provider of dedicated fibre optic infrastructure. He is also responsible for overseeing the operation of F.root-servers.net, one of the 13 internet root domain name servers.
Uniforum runs in Auckland from July 11 to 14.