History
In 2000, a Linux consultant wrote a piece of software for the Royal College of Physicians and Surgeons of Canada to stop the flood of e-mail viruses making their way into the college's network. The free software program filtered e-mail and attachments.
Recognizing that industrial-strength mail filtering tools were going to become a serious requirement in the near future, the consultant did what any good entrepreneur would do: he promptly gave the software a weird name and gave it away.
David Skoll donated his creation, MIMEDefang, to the open source community and kept on consulting. It may have been the best business decision he never made. The widespread popularity of MIMEDefang made it one of the most widely used Milters – and one of the best-supported open-source mail filters – in the world.
By 2002, the importance of mail filtering had hit a new high with increasing amounts of unsolicited commercial e-mail, or 'spam', hammering businesses and users every day. David's company, Roaring Penguin Software, received a number of requests for a user-friendly anti-spam product, and so CanIt™ was born. Roaring Penguin still attributes much of the solution's power and effectiveness to the interaction and input of MIMEDefang users worldwide.