ruby-on-rails-3 – 电子邮件与Rails 3和Heroku Net :: SMTPSynt

这是我的代码：

我生成了一个如下所示的邮件程序：

class Invite < ActionMailer::Base
  def signup_notification(user)
    recipients "#{user.first_name} <#{user.email}>"
    from       "Test"
    subject    "Please activate your new account"
    sent_on    Time.now
    body       :var => 'testing'
  end
end

我在app / views / invite / signup_notification.rhtml中有一个视图

更新：我看到.rhtml不适用于Rails 3,所以我只是尝试了.html.erb,但我有相同的错误.

Your account has been created.
Username: 
Password: 
Visit this url to activate your account:

然后在Heroku控制台我做到了这一点：

user = User.new(:first_name => 'Me',:email => 'me@hotmail.com',:login => 'me',:password => '1234')

然后这个：

Invite.deliver_signup_notification(user)

如果得到这个错误：

Net::SMTPSyntaxError: 501 Syntax error
  /user/ruby1.8.7/lib/ruby/1.8/net/smtp.rb:930:in `check_response`
  /user/ruby1.8.7/lib/ruby/1.8/net/smtp.rb:899:in `getok`
  /user/ruby1.8.7/lib/ruby/1.8/net/smtp.rb:828:in `mailfrom`
  /user/ruby1.8.7/lib/ruby/1.8/net/smtp.rb:653:in `sendmail`

感谢任何想法