Rails 3 ActionMailer w/GMail fail

development.rb

# ( Using Rail 3.2.8 )
# I have my development.rb file :

ButterApp::Application.configure do

  config.cache_classes = false

  # Log error messages when you accidentally call methods on nil.
  config.whiny_nils = true

  # Show full error reports and disable caching
  config.consider_all_requests_local       = true
  config.action_controller.perform_caching = false

  # Don't care if the mailer can't send
  config.action_mailer.raise_delivery_errors = true

  # Print deprecation notices to the Rails logger
  config.active_support.deprecation = :log

  # Only use best-standards-support built into browsers
  config.action_dispatch.best_standards_support = :builtin

  # Raise exception on mass assignment protection for Active Record models
  config.active_record.mass_assignment_sanitizer = :strict

  # Log the query plan for queries taking more than this (works
  # with SQLite, MySQL, and PostgreSQL)
  config.active_record.auto_explain_threshold_in_seconds = 0.5

  # Do not compress assets
  config.assets.compress = false

  # Expands the lines which load the assets
  config.assets.debug = true

  # Devise
  config.action_mailer.default_url_options = { :host => 'localhost:3000' }

  # Paperclip & ImageMagic

  Paperclip.options[:command_path] = "/usr/bin/convert"

  # change to true to allow email to be sent during development

  config.action_mailer.delivery_method = :smtp
  config.action_mailer.perform_deliveries = true
  config.action_mailer.default :charset => "utf-8"  
  Rails.application.routes.default_url_options[:host]= 'localhost:3000'

config.action_mailer.smtp_settings = {
  :address              => "smtp.gmail.com",
  :port                 => 587,
  :domain               => "gmail.com",
  :user_name            => "[email protected]",
  :password             => "MYPASSWORDZ",
  :authentication       => "plain",
  :enable_starttls_auto => true
}

end

rails_console_output

Loading development environment (Rails 3.2.8)
1.9.3p327 :001 > UserMailer.registration_confirmation(User.first)
User Load (1.3ms)  SELECT "users".* FROM "users" LIMIT 1
 => #<Mail::Message:85990530, Multipart: false, Headers: <From: [email protected]>, <To: [email protected]>, <Subject: Registered>, <Mime-Version: 1.0>, <Content-Type: text/plain>> 

user_mailer.rb

# My Mailer:

class UserMailer < ActionMailer::Base
  default :from => "[email protected]"
  
  def registration_confirmation(user)
    @user = user
    mail(:to => user.email, :subject => "Registered")
  end

end

In my Rails Console, I'll call:

UserMailer.registration_confirmation(User.first)

And get this output:

User Load (1.1ms) SELECT "users".* FROM "users" LIMIT 1
=> #<Mail::Message:100296830, Multipart: false, Headers: <To: [email protected]>, <Subject: Registered>, <Mime-Version: 1.0>, <Content-Type: text/plain>>

But nothing shows up in my mailbox...help?

Correction...I get this here;

' User Load (1.3ms) SELECT "users".* FROM "users" LIMIT 1
=> #<Mail::Message:85990530, Multipart: false, Headers: <From: [email protected]>, <To: [email protected]>, <Subject: Registered>, <Mime-Version: 1.0>, <Content-Type: text/plain>> '