Rails Cast: ActionMailer Email not sent to inbox - ruby-on-rails-3

Question

The server states that the email was sent to the correct address but I am not getting the message in my inbox.
My Setup_mail.rb file
ActionMailer::Base.smtp_settings ={
:address => "smtp.gmail.com",
:port => 587,
:domain => "gmail.com",
:user_name => "my_user_name#gmail.com",
:password => "my_password",
:authentication => "Plain",
:enable_starttls_auto => true
}
My development.rb file is:
# Don't care if the mailer can't send
config.action_mailer.raise_delivery_errors = true
config.action_mailer.perform_deliveries = true #default value
config.action_mailer.delivery_method = :smtp #default value
My test.rb file is:
config.action_mailer.delivery_method = :smtp
I have tried multiple variations and am lost. I am running on a Windows 7 machine. I am running Ruby 1.8.7 and Rails 3.0.7
Can anyone help?
Here is my create method:
def create
#user = User.new(params[:user])
if #user.save
UserMailer.registration_confirmation(#user).deliver
sign_in #user
redirect_to #user, :flash => { :success => "Welcome to the Sample App!" }
else
#title = "Sign up"
render 'new'
end
end
My user_mailer.rb
class UserMailer < ActionMailer::Base
default :from => "my_user_name#gmail.com"
def registration_confirmation(user)
mail(:to => user.email, :subject => "Thanks for registering")
end
end

Answer 1

Take a look at your server. I'm pretty sure that you can see in your logs that it's actually trying to send the mail.
The problem is that Google doesn't trust your local IP address and your mails won't get delivered (not even to the spam directory). There is no way to work around this but using a whitelisted server.
If you try your app in production this should normally work, for example deploy your app to heroku to test it.

Answer 2

Try putting in .deliver at the end. That fixed this issue for me:
mail(:to .....).deliver!

Answer 3

Try changing the authentication from a string to a symbol.
ActionMailer::Base.smtp_settings ={
:address => "smtp.gmail.com",
:port => 587,
:domain => "gmail.com",
:user_name => "my_user_name#gmail.com",
:password => "my_password",
:authentication => :plain,
:enable_starttls_auto => true
}

Answer 4

You should check that my_user_name#gmail.com has actually sent the email. We have had issues with this in the past when sending verification emails out through Gmail's SMTP server, since sending in bulk end up not sending at all.
I suggest you log into my_user_name#gmail.com and verify that there are no problems and that the emails are sent.
If not, you may want try a service like Send Grid to send outgoing emails.

Answer 5

I had this same issue, I was able to see that in my console mail was sent but in inbox nothing was appearing, one thing is that you can deploy your app on whitelisted server like heroku, or if you want to see just for testing purpose through your local just enable less secure apps in your browser and you should be able to see that email in your inbox
https://myaccount.google.com/lesssecureapps