Shouldn''t helper: all work in ActionMailer? Similar issue was discussed before: https://rails.lighthouseapp.com/projects/8994/tickets/3945-helper-all-on-by-default But as of rails 3.2.11 the problem is still there: class ContactMailer < ActionMailer::Base helper :all end Produces: LoadError (Missing helper file helpers/all_helper.rb): While it should load them all, since ActionMailer doesn''t do that by default. -- You received this message because you are subscribed to the Google Groups "Ruby on Rails: Core" group. To view this discussion on the web visit https://groups.google.com/d/msg/rubyonrails-core/-/5gCJq7SjYKwJ. To post to this group, send email to rubyonrails-core@googlegroups.com. To unsubscribe from this group, send email to rubyonrails-core+unsubscribe@googlegroups.com. For more options, visit this group at http://groups.google.com/group/rubyonrails-core?hl=en.