premailer is also useful. Even with the new Rails 4.1 email previews (available in development env), sometimes it's useful to be able to preview in production.

premailer is also useful. Even with the new Rails 4.1 email previews (available in development env), sometimes it's useful to be able to preview in production. https://github.com/fphilipe/premailer-rails https://github.com/fphilipe/premailer-rails