class HydrantMailer < ActionMailer::Base default :from => "hello@#{default_url_options[:host]}" def reminder_email(hydrant) @hydrant = hydrant @user = hydrant.user mail( :to => hydrant.user.email, :from => "reminder@#{default_url_options[:host]}", :subject => ["Remember to Shovel", hydrant.name].compact.join(' '), ) end end