A really simple general purpose mail queue for resque

mail_queue.rb

module MailQueue
  extend self

  def queue
    :default
  end

  def perform(mailer_class, method, *args)
    mailer = const_get mailer_class
    mailer.send(method, *args).deliver
  end

  def enqueue()
    EnqueueProxy.new(self)
  end

  class EnqueueProxy

    def initialize(klass)
      @klass = klass
    end

    def method_missing(m, *args, &block)
      if @klass.respond_to? m
        args = [@klass.to_s, m] + args
        Resque.enqueue(MailQueue, *args)
      else
        super
      end
    end

  end

end