A really simple general purpose mail queue for resque

mail_queue.rb

module MailQueue
  extend self

  def queue
    :default
  end

  def perform(options = {})
    options = options.with_indifferent_access

    mailer = options[:klass].constantize
    method = options[:method]
    mailer.send(method, *options[: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
        options = {:klass => @klass.to_s, :method => m, :args => args}
        Resque.enqueue(MailQueue, options)
      else
        super
      end
    end

  end

end