What is the right way to embed image into email using Rails?

Question

What is the right way to embed an image into email using Rails?

Answer 1

RAILS 5

In your mail method add your inline attachment pointing to your image:

class ConfirmationMailer < ActionMailer::Base
  def confirmation_email
      attachments.inline["logo.png"] = File.read("#{Rails.root}/app/assets/images/logo.png")
      mail(to: email, subject: 'test subject')
  end
end

Then in your mail html view an image_tag with the attachment url:

<%= image_tag(attachments['logo.png'].url) %>