diff --git a/examples/blog/app/mailers/notification_mailer.rb b/examples/blog/app/mailers/notification_mailer.rb
new file mode 100644
index 0000000..cf57186
--- /dev/null
+++ b/examples/blog/app/mailers/notification_mailer.rb
@@ -0,0 +1,34 @@
+class NotificationMailer < Prism::Mailer::Base
+  self.template_roots = [File.join(APP_ROOT, 'app', 'views', 'mailers')]
+  default from: 'blog@prism.example'
+
+  def new_post(post_id)
+    @post = Post.find(post_id)
+    @post_url = "/posts/#{@post.to_param}"
+    mail(to: 'editors@prism.example', subject: "New post: #{@post.title}")
+  end
+
+  def welcome(user_id)
+    @user = User.find(user_id)
+    mail(to: @user.email, subject: 'Welcome to Prism Blog')
+  end
+
+  # `token` is generated by the caller (User#generate_token_for(:password_reset),
+  # see PasswordResetsController#create) rather than here - keeps this
+  # mailer, like the others, a pure "given the data, render+send" step with
+  # no signing concerns of its own.
+  def password_reset(user_id, token)
+    @user = User.find(user_id)
+    @reset_url = url_for(:edit_password_reset, token: token)
+    mail(to: @user.email, subject: 'Reset your Prism Blog password')
+  end
+
+  # `token` is generated by the caller, same reasoning as password_reset
+  # above - either User's own after_commit(on: :create) at signup time, or
+  # EmailConfirmationsController#create for a resend.
+  def confirmation_instructions(user_id, token)
+    @user = User.find(user_id)
+    @confirmation_url = url_for(:email_confirmation, token: token)
+    mail(to: @user.email, subject: 'Confirm your Prism Blog email address')
+  end
+end
diff --git a/examples/blog/app/mailers/notification_mailer_preview.rb b/examples/blog/app/mailers/notification_mailer_preview.rb
new file mode 100644
index 0000000..c192ede
--- /dev/null
+++ b/examples/blog/app/mailers/notification_mailer_preview.rb
@@ -0,0 +1,24 @@
+class NotificationMailerPreview < Prism::Mailer::Preview
+  def new_post
+    post = Post.first || Post.create_with_unique_slug(title: 'Preview Post', body: 'Fixture body for mailer previews.')
+    NotificationMailer.new_post(post.id)
+  end
+
+  def welcome
+    user = User.first || User.create!(email: 'preview@example.com', password: 'preview passphrase',
+                                       password_confirmation: 'preview passphrase')
+    NotificationMailer.welcome(user.id)
+  end
+
+  def password_reset
+    user = User.first || User.create!(email: 'preview@example.com', password: 'preview passphrase',
+                                       password_confirmation: 'preview passphrase')
+    NotificationMailer.password_reset(user.id, user.generate_token_for(:password_reset))
+  end
+
+  def confirmation_instructions
+    user = User.first || User.create!(email: 'preview@example.com', password: 'preview passphrase',
+                                       password_confirmation: 'preview passphrase')
+    NotificationMailer.confirmation_instructions(user.id, user.generate_token_for(:email_confirmation))
+  end
+end