Question

I am trying to make an application, that sends an email when user registers.

i put in the smtp settings for gmail in the config/application.rb file and the mail function looks like

mail(:to => "[e-mail]", :subject => "Mail!", :from => "[e-mail]", :content_type => "text/html")

now when i see the logs, i see that it says mail has been sent, but i never receive any mail at all…

also, when i call the mail deliver function, Emails.signed(@user).deliver, the form page does not redirect, but it works if i comment out the email sending code that is either

Emails.signed(@user).deliver

or

mail(:to => "[e-mail]", :subject => "Mail!", :from => "[e-mail]", :content_type => "text/html")

Thanks 🙂

Edit: development.rb

App::Application.configure do
  # Settings specified here will take precedence over those in config/environment.rb

  # In the development environment your application's code is reloaded on
  # every request.  This slows down response time but is perfect for development
  # since you don't have to restart the webserver when you make code changes.
  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_view.debug_rjs             = true
  config.action_controller.perform_caching = false

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

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

end

Answer 1

Somewhat late, but nevertheless maybe this will save someone a few hours of head banging. This is probably only relevant to sending emails from gmail.
First, in order to help debugging the situation, set the following line in development.rb to true (assuming you’re in development mode):

config.action_mailer.raise_delivery_errors = true

This will make ActionMailer not to silently ignore errors.
When I did that, I realized gmail is refusing my username and password.
I then went to my configuration file where I put all the Action Mailer config directives (for me it was in development.rb, there is probably a better place to put it), and noticed that :user_name was set to “admin” rather than “[e-mail]”. Changing it solved the problem. Here is my corrected part of development.rb:

  config.action_mailer.delivery_method = :smtp
  config.action_mailer.smtp_settings = {
  :address              => "smtp.gmail.com",
  :port                 => 587,
  :domain               => 'thedomain.com',
  :user_name            => '[e-mail]',
  :password             => '<password>',
  :authentication       => 'plain',
  :enable_starttls_auto => true  }

References:

http://forums.pragprog.com/forums/43/topics/541
http://edgeguides.rubyonrails.org/action_mailer_basics.html