diff --git a/modules/meeting/app/controllers/meetings_controller.rb b/modules/meeting/app/controllers/meetings_controller.rb
index 8d5ac967ade..54715281848 100644
--- a/modules/meeting/app/controllers/meetings_controller.rb
+++ b/modules/meeting/app/controllers/meetings_controller.rb
@@ -335,8 +335,15 @@ class MeetingsController < ApplicationController
   def toggle_notifications
     @meeting.toggle!(:notify)
 
+    # Reload to get the updated value
+    @meeting.recurring_meeting.template.reload if @meeting.template?
+
     if @meeting.notify?
-      handle_notification(type: :toggle_notifications)
+      if @meeting.template?
+        handle_series_notification
+      else
+        handle_notification(type: :toggle_notifications)
+      end
     end
 
     update_sidebar_component_via_turbo_stream
@@ -588,4 +595,21 @@ class MeetingsController < ApplicationController
       render_error_flash_message_via_turbo_stream(message:)
     end
   end
+
+  def handle_series_notification
+    recurring_meeting = @meeting.recurring_meeting
+
+    @meeting
+      .participants
+      .invited
+      .find_each do |participant|
+      MeetingSeriesMailer.invited(
+        recurring_meeting,
+        participant.user,
+        User.current
+      ).deliver_later
+    end
+
+    render_success_flash_message_via_turbo_stream(message: I18n.t(:notice_successful_notification))
+  end
 end
diff --git a/modules/meeting/spec/features/meeting_notifications_spec.rb b/modules/meeting/spec/features/meeting_notifications_spec.rb
index f43c4b26ed7..0a4842baa95 100644
--- a/modules/meeting/spec/features/meeting_notifications_spec.rb
+++ b/modules/meeting/spec/features/meeting_notifications_spec.rb
@@ -372,6 +372,51 @@ RSpec.describe "Meeting notifications", :js do
       perform_enqueued_jobs
       expect(ActionMailer::Base.deliveries.size).to eq 0
     end
+
+    it "sends out an invite notification when enabling notifications on a series template (Bug #70178)" do
+      template_page.visit!
+
+      template_page.open_first_meeting
+      wait_for_network_idle
+
+      # check for initial invitation mail
+      perform_enqueued_jobs
+      expect(ActionMailer::Base.deliveries.size).to eq 1
+      ActionMailer::Base.deliveries.clear
+
+      template_page.visit!
+      expect(meeting.template.reload.notify).to be true
+
+      page.within("[data-test-selector='email-updates-mode-selector']") do
+        click_on "Disable"
+      end
+
+      template_page.expect_modal "Disable email calendar updates?"
+      template_page.within_modal "Disable email calendar updates?" do
+        click_on "Disable email updates"
+      end
+
+      wait_for_network_idle
+      expect(meeting.template.reload.notify).to be false
+
+      page.within("[data-test-selector='email-updates-mode-selector']") do
+        click_on "Enable"
+      end
+
+      template_page.expect_modal "Enable email calendar updates?"
+      template_page.within_modal "Enable email calendar updates?" do
+        click_on "Enable email updates"
+      end
+
+      wait_for_network_idle
+
+      expect_flash(message: "Email calendar update sent to all participants")
+      expect(meeting.template.reload.notify).to be true
+
+      # check for invitation mail on re-enabling notifications
+      perform_enqueued_jobs
+      expect(ActionMailer::Base.deliveries.size).to eq 1
+    end
   end
 
   context "when a meeting is closed" do