Postfix: Fighting Spam using a Real-Time Block List (RBL)

     For those that administer postfix email servers that see high volumes of email, dealing with Spam can be quite a challenge. Initially I was relying on the server to do its own Spam checking with tools such as amavisd-new, spamassassin, etc. Which was working really well for the most part, but when the Spam volume gets high, performing all that processing, in the hundreds of thousands of emails, was putting unnecessary load on the server.


Over the years, I've had a number of blogs and assorted websites. Spanned across various hosting providers and platforms, leading to disuse and lack of focus. I've consolidated my domains, dropped the old hosting providers and got a shiny new droplet from Digital Ocean to play with, as well as a renewed sense of focus.  I've saved a couple of my old blog posts to repost here, but for the most part, it's a clean start.

Why a Digital Ocean droplet?