class ApplicationMailer < ActionMailer::Base include MailerDolistConcern include MailerMonitoringConcern include BalancedDeliveryConcern helper :application # gives access to all helpers defined within `application_helper`. default from: "#{APPLICATION_NAME} <#{CONTACT_EMAIL}>" layout 'mailer' before_action -> { Sentry.set_tags(mailer: mailer_name, action: action_name) } end