check_for_mail_delivery.rb

module ResqueJob

  class CheckMailDelivery
    
    @queue = :medium

    def self.perform
      gmail = Gmail.connect('stillalive.features', 'ourlittlesecret')
      raise "Still Alive mails not being delivered" if gmail.mailbox('[Gmail]/All Mail').emails.last.date.to_time < 30.minutes.ago
    end

  end

end