diff --git a/app/controllers/webhooks_controller.rb b/app/controllers/webhooks_controller.rb
index da480adcc25..86c227a0804 100644
--- a/app/controllers/webhooks_controller.rb
+++ b/app/controllers/webhooks_controller.rb
@@ -88,6 +88,28 @@ class WebhooksController < ActionController::Base
     render nothing: true, status: 200
   end
 
+  def sparkpost
+    events = params["_json"] || [params]
+    events.each do |event|
+      message_id = event["msys"]["message_event"]["campaign_id"] rescue nil
+      bounce_class = event["msys"]["message_event"]["bounce_class"] rescue nil
+      next unless message_id && bounce_class
+
+      bounce_class = bounce_class.to_i
+
+      # bounce class definitions: https://support.sparkpost.com/customer/portal/articles/1929896
+      if bounce_class < 80
+        if bounce_class == 10 || bounce_class == 25 || bounce_class == 30
+          process_bounce(message_id, SiteSetting.hard_bounce_score)
+        else
+          process_bounce(message_id, SiteSetting.soft_bounce_score)
+        end
+      end
+    end
+
+    render nothing: true, status: 200
+  end
+
   private
 
     def mailgun_failure
diff --git a/config/routes.rb b/config/routes.rb
index af169723dd0..506f81db6bc 100644
--- a/config/routes.rb
+++ b/config/routes.rb
@@ -20,6 +20,7 @@ Discourse::Application.routes.draw do
   post "webhooks/sendgrid" => "webhooks#sendgrid"
   post "webhooks/mailjet"  => "webhooks#mailjet"
   post "webhooks/mandrill" => "webhooks#mandrill"
+  post "webhooks/sparkpost" => "webhooks#sparkpost"
 
   if Rails.env.development?
     mount Sidekiq::Web => "/sidekiq"
diff --git a/lib/email/sender.rb b/lib/email/sender.rb
index d3774641820..60cb98eccbe 100644
--- a/lib/email/sender.rb
+++ b/lib/email/sender.rb
@@ -139,6 +139,8 @@ module Email
         @message.header['X-MJ-CustomID'] = @message.message_id
       when "smtp.mandrillapp.com"
         @message.header['X-MC-Metadata'] = { message_id: @message.message_id }.to_json
+      when "smtp.sparkpostmail.com"
+        @message.header['X-MSYS-API'] = { campaign_id: @message.message_id }.to_json
       end
 
       # Suppress images from short emails
diff --git a/spec/controllers/webhooks_controller_spec.rb b/spec/controllers/webhooks_controller_spec.rb
index 6e599a2aaf4..2cf6ef71064 100644
--- a/spec/controllers/webhooks_controller_spec.rb
+++ b/spec/controllers/webhooks_controller_spec.rb
@@ -99,4 +99,28 @@ describe WebhooksController do
 
   end
 
+  context "sparkpost" do
+
+    it "works" do
+      user = Fabricate(:user, email: email)
+      email_log = Fabricate(:email_log, user: user, message_id: message_id)
+
+      post :sparkpost, "_json" => [{
+        "msys" => {
+          "message_event" => {
+            "bounce_class" => 10,
+            "campaign_id" => message_id
+          }
+        }
+      }]
+
+      expect(response).to be_success
+
+      email_log.reload
+      expect(email_log.bounced).to eq(true)
+      expect(email_log.user.user_stat.bounce_score).to eq(2)
+    end
+
+  end
+
 end