Sidekiq and rails 4 actionmailer never delivers emails

Question

I\'ve setup sidekiq in a rails 4 application for sending emails and processing background jobs. I have also devise which I am using devise_async and a typical contact form email

Answer 1

For anyone that might benefit from this, I ran sidekiq like this:

worker: bundle exec sidekiq -q default -q mailers -t 25 -c 3 ...

on the Procfile using heroku