4 files changed, 21 insertions, 0 deletions
diff --git a/actionmailer/CHANGELOG.md b/actionmailer/CHANGELOG.md
index 1468a89e96..415c54ec70 100644
--- a/actionmailer/CHANGELOG.md
+++ b/actionmailer/CHANGELOG.md
@@ -1,3 +1,7 @@
+*   Skip delivery notification when `perform_deliveries` is false.
+
+    *Yoshiyuki Kinjo*
+
 *   Allow call `assert_enqueued_email_with` with no block.
 
     Example:
diff --git a/actionmailer/lib/action_mailer/base.rb b/actionmailer/lib/action_mailer/base.rb
index 7f22af83b0..1ab2c55a6c 100644
--- a/actionmailer/lib/action_mailer/base.rb
+++ b/actionmailer/lib/action_mailer/base.rb
@@ -579,6 +579,7 @@ module ActionMailer
       # calling +deliver_mail+ directly and passing a <tt>Mail::Message</tt> will do
       # nothing except tell the logger you sent the email.
       def deliver_mail(mail) #:nodoc:
+        return unless mail.perform_deliveries
         ActiveSupport::Notifications.instrument("deliver.action_mailer") do |payload|
           set_payload_for_mail(payload, mail)
           yield # Let Mail do the delivery actions
diff --git a/actionmailer/test/log_subscriber_test.rb b/actionmailer/test/log_subscriber_test.rb
index 2e89758dfb..48edb80c0c 100644
--- a/actionmailer/test/log_subscriber_test.rb
+++ b/actionmailer/test/log_subscriber_test.rb
@@ -37,6 +37,17 @@ class AMLogSubscriberTest < ActionMailer::TestCase
     BaseMailer.deliveries.clear
   end
 
+  def test_deliver_is_not_notified_when_perform_deliveries_is_false
+    BaseMailer.welcome_without_deliveries.deliver_now
+    wait
+
+    assert_equal(0, @logger.logged(:info).size)
+    assert_equal(1, @logger.logged(:debug).size)
+    assert_match(/BaseMailer#welcome_without_deliveries: processed outbound mail in [\d.]+ms/, @logger.logged(:debug).first)
+  ensure
+    BaseMailer.deliveries.clear
+  end
+
   def test_receive_is_notified
     fixture = File.read(File.expand_path("fixtures/raw_email", __dir__))
     TestMailer.receive(fixture)
diff --git a/actionmailer/test/mailers/base_mailer.rb b/actionmailer/test/mailers/base_mailer.rb
index bfaecdb658..a3101207dc 100644
--- a/actionmailer/test/mailers/base_mailer.rb
+++ b/actionmailer/test/mailers/base_mailer.rb
@@ -21,6 +21,11 @@ class BaseMailer < ActionMailer::Base
     mail(template_name: "welcome", template_path: path)
   end
 
+  def welcome_without_deliveries
+    mail(template_name: "welcome")
+    mail.perform_deliveries = false
+  end
+
   def html_only(hash = {})
     mail(hash)
   end