The documentation page says: > Postmark's spam API is a mostly RESTfull interface to the Spam filter > tool SpamAssassin. ... > This is free to use and

The documentation page says: > Postmark's spam API is a mostly RESTfull interface to the Spam filter > tool SpamAssassin. ... > This is free to use and may be updated, removed or changed at any time. If there's nothing particularly proprietary about the setup, it'd be great to open source it and release it as a public Amazon EC2 AMI. That way, others can play around and tweak it and it would remove the dependency on a third-party service of uncertain longevity.