rails mailit

cd mailit

rails g scaffold user name:string email:string

rake db:migrate

rails g mailer user_mailer

bundle install

# config/initializers/setup_mail.rb

ActionMailer::Base.smtp_settings = {

  :address              => "smtp.gmail.com",

  :port                 => 587,

  :domain               => "railscasts.com",

  :user_name            => "railscasts",

  :password             => "secret",

  :authentication       => "plain",

  :enable_starttls_auto => true

}
ActionMailer::Base.default_url_options[:host] = "localhost:3000"

Mail.register_interceptor(DevelopmentMailInterceptor) if Rails.env.development?
# app/mailers/user_mailer.rb

class UserMailer < ActionMailer::Base

  default :from => "ryan@railscasts.com"

def registration_confirmation(user)
@user = user
attachments["rails.png"] = File.read("#{Rails.root}/public/images/rails.png")
mail(:to => "#{user.name} <#{user.email}>", :subject => "Registered")
end
end
# users_controller.rb

UserMailer.registration_confirmation(@user).deliver
# Gemfile

gem "mail", "2.1.3"
# lib/development_mail_interceptor.rb

class DevelopmentMailInterceptor

  def self.delivering_email(message)

    message.subject = "#{message.to} #{message.subject}"
message.to = "ryan@railscasts.com"
end
end

<!— views/user_mailer/registration_confirmation.text.erb —>

<%= @user.name %>,

Thank you for registering!
Edit profile: <%= edit_user_url(@user) %>
<!— views/user_mailer/registration_confirmation.html.erb —>

<p><%= @user.name %>,</p>
<p>Thank you for registering!</p>
<p><%= link_to "Edit profile", edit_user_url(@user) %></p>