Following a tutorial where I am adding user authentication to a basic rails app.

There is a step where I have to add the following code to a `setup_mail.rb` file

```
if Rails.env.development?
  ActionMailer::Base.delivery_method = :smtp
  ActionMailer::Base.smtp_settings = {
    address:        'smtp.sendgrid.net',
    port:           '587',
    authentication: :plain,
    user_name:      ENV['SENDGRID_USERNAME'],
    password:       ENV['SENDGRID_PASSWORD'],
    domain:         'heroku.com',
    enable_starttls_auto: true
  }
end

```

I have added the sendgrid addon, and put user id and password on the application.yml file as well. 

But when I sign up, I do not receive a confirmation mail. 

cross checked the `development.rb` file as well and made sure the following code was present

```
....
   config.action_mailer.default_url_options = { host: 'localhost:3000' }
   config.action_mailer.delivery_method = :smtp
   config.action_mailer.perform_deliveries = true
end

```

Followed the tutorial word to word. Hence really stumped! Google pointed me to a few places and confused me futher!

This is how my migration db file looks like at the moment

```
class DeviseCreateUsers < ActiveRecord::Migration
  def change
    create_table(:users) do |t|
      ## Customization
       t.string :name
      ## Database authenticatable
      t.string :email,              null: false, default: ""
      t.string :encrypted_password, null: false, default: ""

      ## Recoverable
      t.string   :reset_password_token
      t.datetime :reset_password_sent_at

      ## Rememberable
      t.datetime :remember_created_at

      ## Trackable
      t.integer  :sign_in_count, default: 0, null: false
      t.datetime :current_sign_in_at
      t.datetime :last_sign_in_at
      t.string   :current_sign_in_ip
      t.string   :last_sign_in_ip

      ## Confirmable
       t.string   :confirmation_token
       t.datetime :confirmed_at
       t.datetime :confirmation_sent_at
       t.string   :unconfirmed_email # Only if using reconfirmable

      ## Lockable
      # t.integer  :failed_attempts, default: 0, null: false # Only if lock strategy is    :failed_attempts
  # t.string   :unlock_token # Only if unlock strategy is :email or :both
  # t.datetime :locked_at

  t.timestamps
end

add_index :users, :email,                unique: true
add_index :users, :reset_password_token, unique: true
# add_index :users, :confirmation_token,   unique: true
# add_index :users, :unlock_token,         unique: true
  end
end

```

Here is my user.rb file as well

```
class User < ActiveRecord::Base
  # Include default devise modules. Others available are:
  # :confirmable, :lockable, :timeoutable and :omniauthable
  devise :database_authenticatable, :registerable,
         :recoverable, :rememberable, :trackable, :validatable, :confirmable
end

```

These are the steps I followed in order

1. Installed devise gem, ran `bundle`
2. `rails g devise:install`
3. Added the above code to development.rb file
4. `rails g devise:views`
5. `rails g devise User`
6. Uncommented `confirmable` in the migration file`
7. `rake db:migrate`
8. Added `:confirmable` to the User class in user.rb
9. `heroku addons:add sendgrid:starter`
10. `heroku congif:get SENDGRID_USERNAME`
11. `heroku config:get SENDGRID_PASSWORD`
12. Created config/initializers/setup\_mail.rb and added the above mail settings.
13. Installed figaro.
14. Added environment variables to application.yml file
15. `figaro heroku:set -e production

Update

Added mail settings in development.rb as well, no luck. 

Tried changing the domain from `domain: 'heroku.com'` to `domain: 'sendgrid.com'`, no luck.

Here is the server log. It appears that the mail has been sent but I cannot find it in the inbox or spam

```
Sent mail to myemail@gmail.com (2070.9ms)                                                                                                                                                    
Date: Wed, 07 Jan 2015 13:52:05 +0000                                                                                                                                                             
From: please-change-me-at-config-initializers-devise@example.com                                                                                                                                  
Reply-To: please-change-me-at-config-initializers-devise@example.com                                                                                                                              
To: myemailgmail.com                                                                                                                                                                        
Message-ID: <54ad3a05d2b29_1ba3fb59082841433253@bloc-ruby-179559.mail>                                                                                                                            
Subject: Confirmation instructions                                                                                                                                                                
Mime-Version: 1.0                                                                                                                                                                                 
Content-Type: text/html;                                                                                                                                                                          
 charset=UTF-8                                                                                                                                                                                    
 Content-Transfer-Encoding: 7bit                                                                                                                                                                   

 <p>Welcome !</p>                                                                                                                                                            

<p>You can confirm your account email through the link below:</p>                                                                                                                                 

 <p><a href="http://localhost:3000/users/confirmation? confirmation_token=W3xuYfA8aq2obMBmffghfghQaDt">Confirm my account</a></p>                                                                          

   (45.0ms)  commit transaction                                                                                                                                                                   
Redirected to http://bloc-ruby-179559.apse1.nitrousbox.com/                                                                                                                                       
Completed 302 Found in 2872ms (ActiveRecord: 46.4ms)                                                                              

```