Rails sends mail from GMail

I am on rails 2.3.5 and have the latest Ruby installed and my application works well except for GMail emails.

I am trying to set up my gmail mail connection that previously worked but now doesn't want to know.

This is my code:

# Be sure to restart your server when you modify this file

# Uncomment below to force Rails into production mode when
# you don't control web/app server and can't set it the proper way
# ENV['RAILS_ENV'] ||= 'production'

# Specifies gem version of Rails to use when vendor/rails is not present
RAILS_GEM_VERSION = '2.3.5' unless defined? RAILS_GEM_VERSION

# Bootstrap the Rails environment, frameworks, and default configuration
require File.join(File.dirname(__FILE__), 'boot')


Rails::Initializer.run do |config|
  # Gems
  config.gem "capistrano-ext", :lib => "capistrano"
  config.gem "configatron"

  # Make Time.zone default to the specified zone, and make Active Record store time values
  # in the database in UTC, and return them converted to the specified local zone.
  config.time_zone = "London"

  # The internationalization framework can be changed to have another default locale (standard is :en) or more load paths.
  # All files from config/locales/*.rb,yml are added automatically.
  # config.i18n.load_path << Dir[File.join(RAILS_ROOT, 'my', 'locales', '*.{rb,yml}')]
  #config.i18n.default_locale = :de

  # Your secret key for verifying cookie session data integrity.
  # If you change this key, all old sessions will become invalid!
  # Make sure the secret is at least 30 characters and all random, 
  # no regular words or you'll be exposed to dictionary attacks.
  config.action_controller.session = {
    :session_key => '_base_session',
    :secret      => '7389ea9180b15f1495a5e73a69a893311f859ccff1ffd0fa2d7ea25fdf1fa324f280e6ba06e3e5ba612e71298d8fbe7f15fd7da2929c45a9c87fe226d2f77347'
  }

  config.active_record.observers = :user_observer

end

ActiveSupport::CoreExtensions::Date::Conversions::DATE_FORMATS.merge!(:default => '%d/%m/%Y')
ActiveSupport::CoreExtensions::Time::Conversions::DATE_FORMATS.merge!(:default => '%d/%m/%Y')

require "will_paginate"

ActionMailer::Base.delivery_method = :smtp
ActionMailer::Base.smtp_settings = {
  :enable_starttls_auto => true,
  :address => "smtp.gmail.com",
  :port => 587,
  :domain => "XXXXXXXX.XXX",
  :authentication => :plain,
  :user_name => "XXXXXXXXXX.XXXXXXXXXX.XXX",
  :password => "XXXXX"
}

      

        
        
        
      

    

But the above just results in an SMTP authentication error in the production log.

I've read various reports on this not working in Rails 2.2.2, but nothing for 2.3.5, who didn't have any ideas?

Thanks,

Danny