From 0fb1e97a85ece2f83c6bbd56b50095bd21a7739e Mon Sep 17 00:00:00 2001
From: cxt <853663049@qq.com>
Date: Fri, 8 Nov 2019 16:43:08 +0800
Subject: [PATCH 1/2] =?UTF-8?q?=E5=BC=82=E6=AD=A5=E9=82=AE=E4=BB=B6?=
 =?UTF-8?q?=E5=8F=91=E9=80=81?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 config/sidekiq.yml | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/config/sidekiq.yml b/config/sidekiq.yml
index 1c7a4e2cd..4ceb7b31f 100644
--- a/config/sidekiq.yml
+++ b/config/sidekiq.yml
@@ -4,4 +4,5 @@
 :queues:
   - [default, 3]
   - [searchkick, 10]
-  - [notify, 100]
\ No newline at end of file
+  - [notify, 100]
+  - [mailers, 101]

From b3b901b7b5a2b1aa39c534871aa8f01e1c803648 Mon Sep 17 00:00:00 2001
From: cxt <853663049@qq.com>
Date: Fri, 8 Nov 2019 16:47:45 +0800
Subject: [PATCH 2/2] =?UTF-8?q?=E9=82=AE=E4=BB=B6=E7=9A=84=E5=BC=82?=
 =?UTF-8?q?=E6=AD=A5=E5=8F=91=E9=80=81?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 app/controllers/messages_controller.rb | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/app/controllers/messages_controller.rb b/app/controllers/messages_controller.rb
index 3cbe5287f..57a5c7fad 100644
--- a/app/controllers/messages_controller.rb
+++ b/app/controllers/messages_controller.rb
@@ -213,7 +213,7 @@ class MessagesController < ApplicationController
 
   def notify_course_students message, course
     course.students.includes(:user).each do |student|
-      UserMailer.course_message_email(student&.user&.mail, message.id).deliver_now if student&.user&.mail
+      UserMailer.course_message_email(student&.user&.mail, message.id).deliver_later if student&.user&.mail
     end
   end
 end