diff --git a/ts/RemoteConfig.ts b/ts/RemoteConfig.ts
index 4eac88bdf8..8809f6b478 100644
--- a/ts/RemoteConfig.ts
+++ b/ts/RemoteConfig.ts
@@ -19,6 +19,7 @@ export type ConfigKeyType =
   | 'desktop.screensharing2'
   | 'desktop.senderKey.send'
   | 'desktop.senderKey.retry'
+  | 'desktop.sendSenderKey2'
   | 'desktop.storage'
   | 'desktop.storageWrite3'
   | 'desktop.worksAtSignal'
diff --git a/ts/background.ts b/ts/background.ts
index 567af6ddc3..f288f43c8a 100644
--- a/ts/background.ts
+++ b/ts/background.ts
@@ -2314,7 +2314,9 @@ export async function startApp(): Promise<void> {
             announcementGroup: true,
             'gv2-3': true,
             'gv1-migration': true,
-            senderKey: true,
+            senderKey: window.Signal.RemoteConfig.isEnabled(
+              'desktop.sendSenderKey2'
+            ),
           });
         } catch (error) {
           window.log.error(
diff --git a/ts/textsecure/WebAPI.ts b/ts/textsecure/WebAPI.ts
index 499272879e..ea371f4e49 100644
--- a/ts/textsecure/WebAPI.ts
+++ b/ts/textsecure/WebAPI.ts
@@ -764,10 +764,10 @@ export type CapabilitiesType = {
   senderKey: boolean;
 };
 export type CapabilitiesUploadType = {
-  announcementGroup: true;
-  'gv2-3': true;
-  'gv1-migration': true;
-  senderKey: true;
+  announcementGroup: boolean;
+  'gv2-3': boolean;
+  'gv1-migration': boolean;
+  senderKey: boolean;
 };
 
 type StickerPackManifestType = any;
@@ -1494,7 +1494,7 @@ export function initialize({
         announcementGroup: true,
         'gv2-3': true,
         'gv1-migration': true,
-        senderKey: true,
+        senderKey: false,
       };
 
       const { accessKey, uuid } = options;
diff --git a/ts/util/sendToGroup.ts b/ts/util/sendToGroup.ts
index d5f993dc8b..bd7ffab10a 100644
--- a/ts/util/sendToGroup.ts
+++ b/ts/util/sendToGroup.ts
@@ -19,6 +19,7 @@ import {
   SenderCertificateMode,
   SendLogCallbackType,
 } from '../textsecure/OutgoingMessage';
+import { isEnabled } from '../RemoteConfig';
 
 import { isOlderThan } from './timestamp';
 import {
@@ -146,6 +147,7 @@ export async function sendContentMessageToGroup({
   const ourConversation = window.ConversationController.get(ourConversationId);
 
   if (
+    isEnabled('desktop.sendSenderKey2') &&
     ourConversation?.get('capabilities')?.senderKey &&
     RemoteConfig.isEnabled('desktop.senderKey.send') &&
     isGroupV2(conversation.attributes)