#61 Sending Email (revised)

Apr 28, 2012 | 8 minutes | Mailing

Thanks to Action Mailer, sending email in Rails is easy but there are several gotchas to be aware of. Here I show how to send an email upon submitting a form and the configuration options necessary.

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          terminal
        
rails g mailer user_mailer signup_confirmation

          app/mailers/user_mailer.rb
        
class UserMailer < ActionMailer::Base
  default from: "railscasts@example.com"

  def signup_confirmation(user)
    @user = user
    mail to: user.email, subject: "Sign Up Confirmation"
  end
end

          app/views/user_mailer/signup_confirmation.text.erb
        
<%= @user.name %>,

Thank you for signing up.

<%= user_url(@user) %>

Note: In the episode I just passed the @user model in directly in the HTML template (below) but that generates a relative URL. You need to use the url helper method to generate a full URL.

          app/views/user_mailer/signup_confirmation.html.erb
        
<p><%= @user.name %>,</p>

<p>Thank you for signing up.</p>

<p><%= link_to "User Profile", user_url(@user) %></p>

          users_controller.rb
        
UserMailer.signup_confirmation(@user).deliver

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

# Change mail delvery to either :smtp, :sendmail, :file, :test
config.action_mailer.delivery_method = :smtp
config.action_mailer.smtp_settings = {
  address: "smtp.gmail.com",
  port: 587,
  domain: "railscasts.com",
  authentication: "plain",
  enable_starttls_auto: true,
  user_name: ENV["GMAIL_USERNAME"],
  password: ENV["GMAIL_PASSWORD"]
}

# Specify what domain to use for mailer URLs
config.action_mailer.default_url_options = {host: "localhost:3000"}