diff --git a/packages/sdk/src/messaging/sender.ts b/packages/sdk/src/messaging/sender.ts
index 8dbb1c4e8e..6d093d8bc2 100644
--- a/packages/sdk/src/messaging/sender.ts
+++ b/packages/sdk/src/messaging/sender.ts
@@ -37,6 +37,10 @@ export class Sender {
   }
 
   public start(): void {
+    if (this.sendInterval) {
+      return;
+    }
+
     this.sendInterval = setInterval(
       () => void this.backgroundSend(),
       DEFAULT_SEND_INTERVAL