Mailvisa is a spam filter software inspired by Paul Graham's "A Plan for Spam" that effectively filters spam emails from user's inbox.
Mailvisa was written in Ruby, making it easy to modify and distribute under the terms of the MIT License. Recently, a new release was made which includes the addition of a handy man page. With its advanced filtering techniques and user-friendly licensing, mailvisa is a great option for anyone looking for a reliable spam filter.
Version 1.0.0: N/A