diff --git a/app/mailers/user_notifications.rb b/app/mailers/user_notifications.rb
index 5981e879699..d92af6fec1e 100644
--- a/app/mailers/user_notifications.rb
+++ b/app/mailers/user_notifications.rb
@@ -100,7 +100,8 @@ class UserNotifications < ActionMailer::Base
     opts[:allow_reply_by_email] = true
 
     # We use the 'user_posted' event when you are emailed a post in a PM.
-    opts[:notification_type] = 'posted'
+    # but it must get through to email in mailing list mode
+    opts[:notification_type] = 'postedprivate'
 
     notification_email(user, opts)
   end
@@ -156,6 +157,12 @@ class UserNotifications < ActionMailer::Base
     return if user.mailing_list_mode &&
        ["replied", "mentioned", "quoted", "posted"].include?(notification_type)
 
+    # We use the 'user_posted' event when you are emailed a post in a PM.
+    # but it must get through to email in mailing list mode
+    if notification_type == 'postedprivate'
+      notification_type = 'posted'
+    end
+
     title = @notification.data_hash[:topic_title]
     allow_reply_by_email = opts[:allow_reply_by_email] unless user.suspended?