Hello, I have installed discourse with docker and I have been looking for the routes.rb file to change the endpoint to email processing as It is said here https://meta.discourse.org/t/simple-plugin-that-offers-an-http-post-endpoint-to-mailgun-or-any-other-mail-service/37001/2
However, I can not find the directory where is that file. Can you please help me to manage this problem?
Thank you in advance