title: Sendgrid connection refused
body: <p>I am developing a Ruby on Rails 3.2 application on Heroku. I added the sendgrid addon with</p>
  
  <pre><code>heroku addons:add sendgrid:starter
  </code></pre>
  
  <p>and then restarted with</p>
  
  <pre><code>heroku restart
  </code></pre>
  
  <p>However, if I try to send a password email in my application (I am using the devise login gem), I get this in the logs</p>
  
  <pre><code>2013-01-24T17:35:37+00:00 app[web.1]: Started POST "/users/password" for xxx.xxx.xxx.xx at 2013-01-24 17:35:37 +0000
  2013-01-24T17:35:37+00:00 app[web.1]: Processing by Devise::PasswordsController#create as HTML
  2013-01-24T17:35:37+00:00 app[web.1]:   Parameters: {"utf8"=&gt;"✓", "authenticity_token"=&gt;"XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX=", "user"=&gt;{"email"=&gt;"xxxxxxxx.xxxxxx@gmail.com"}, "commit"=&gt;"Send me reset password instructions"}
  2013-01-24T17:35:38+00:00 app[web.1]:   Rendered vendor/bundle/ruby/1.9.1/gems/devise-2.2.2/app/views/devise/mailer/reset_password_instructions.html.erb (1.0ms)
  2013-01-24T17:35:41+00:00 app[web.1]: 
  2013-01-24T17:35:41+00:00 app[web.1]: Sent mail to xxx.xxxxx@gmail.com (3080ms)
  2013-01-24T17:35:41+00:00 app[web.1]: Completed 500 Internal Server Error in 3311ms
  2013-01-24T17:35:41+00:00 app[web.1]: 
  2013-01-24T17:35:41+00:00 app[web.1]: Errno::ECONNREFUSED (Connection refused - connect(2)):
  2013-01-24T17:35:41+00:00 app[web.1]:   /usr/local/lib/ruby/1.9.1/net/smtp.rb:546:in `initialize'
  2013-01-24T17:35:41+00:00 app[web.1]:   /usr/local/lib/ruby/1.9.1/net/smtp.rb:546:in `open'
  2013-01-24T17:35:41+00:00 app[web.1]:   /usr/local/lib/ruby/1.9.1/net/smtp.rb:546:in `tcp_socket'
  2013-01-24T17:35:41+00:00 app[web.1]:   /usr/local/lib/ruby/1.9.1/net/smtp.rb:555:in `block in do_start'
  2013-01-24T17:35:41+00:00 app[web.1]:   /usr/local/lib/ruby/1.9.1/timeout.rb:58:in `timeout'
  2013-01-24T17:35:41+00:00 app[web.1]:   /usr/local/lib/ruby/1.9.1/timeout.rb:89:in `timeout'
  2013-01-24T17:35:41+00:00 app[web.1]:   /usr/local/lib/ruby/1.9.1/net/smtp.rb:555:in `do_start'
  2013-01-24T17:35:41+00:00 app[web.1]:   /usr/local/lib/ruby/1.9.1/net/smtp.rb:525:in `start'
  2013-01-24T17:35:41+00:00 app[web.1]:   vendor/bundle/ruby/1.9.1/gems/mail-2.4.4/lib/mail/network/delivery_methods/smtp.rb:144:in `deliver!'
  2013-01-24T17:35:41+00:00 app[web.1]:   vendor/bundle/ruby/1.9.1/gems/mail-2.4.4/lib/mail/message.rb:2034:in `do_delivery'
  </code></pre>