Spamcheck is a free tool from Postmark that helps you process the spam score of incoming or outgoing email messages. It allows you to do this with a lightweight JSON API while avoiding the hassle of managing SpamAssassin. It also allows you to instantly and easily integrate spam score processing in your app. If you have any questions, I’ll be here to answer them.
Thanks, Nat! Great questions. You can do bulk uploads and comparisons using the API, but I don't believe we have plans to allow bulk uploads and comparisons using the web interface in the next few months.