Looking for help setting up email settings for Sparkpost on Rails

I am using a premade project located here: [login to view URL]

The email settings located: /config/environments

I am fairly new to messing with ruby because I wanted to get this application running and I am not sure how to set up the emails with Sparkpost.

My current site is running the project: [login to view URL]

The only issue I am having with my site is setting up the email. I am not sure how to do it due to this being a premade Rails project.

I have full access to SSH/FTP so no issues there.

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