What is Listboxer?

Listboxer is the result of an idea I had to decouple email newsletters from the email inbox. It basically acts as a public inbox where people can come and discover newsletters before subscribing to them. There is a lot of good content out there that is currently silo-ed and hidden from discovery. Lots of really smart people are creating amazing stuff but it's hidden away from view. Imagine a twitter that doesn't require you to do anything but send out the emails you're already creating.

How it works:


Why was it created?

I created it as a project to learn more about RoR and postbacks using a third-party API.

How long did it take to create?

It was created in about a week as a final project for General Assembly's Web Development Immersive Course.

How to install?


  1. Create account on Postmark
  2. Setup an inbound email address and point it to your server. Using a service like ngrok is very helpful in this situation.
  3. Download install and run PostgreSQL

Install Process

  1. $ git clone https://github.com/rileygelwicks/listboxer.git
  2. $ cd listreader/
  3. $ bundle install
  4. $ rails s
  5. Navigate to localhost:3000 in your browser.

Tech Stack

  • Ruby on Rails
  • PostgreSQL
  • Griddler for handling inbound emails.
  • CoffeeScript with jQuery
  • Heroku for hosting.