diff --git a/static/src/model.tsx b/static/src/model.tsx
index ececc57..3839a7f 100644
--- a/static/src/model.tsx
+++ b/static/src/model.tsx
@@ -115,7 +115,6 @@ export function sendMessage() {
 }
 
 export function requestMailbox() {
-  deleteMailbox();
   UDN.requestMailbox();
 }
 
diff --git a/subscriptionHandler.ts b/subscriptionHandler.ts
index 8d1d252..f108ec7 100644
--- a/subscriptionHandler.ts
+++ b/subscriptionHandler.ts
@@ -29,20 +29,13 @@ export class Mailbox implements Subscriber {
     return this.expiryDate < today;
   }
 
-  // init
+  // manage
   constructor(ws: WS) {
-    this.ws = ws;
-    this.sendId();
-  }
-
-  sendId(): void {
-    if (!this.ws) return;
-
     sendWebSocketMessage(
       {
         assignedMailboxId: this.id,
       },
-      this.ws
+      ws
     );
   }
 
@@ -57,6 +50,12 @@ export class Mailbox implements Subscriber {
     );
   }
 
+  delete(): void {
+    subscriptionMap.deleteSubscriber(this);
+    if (!this.ws) return;
+    sendWebSocketMessage({ deletedMailbox: this.id }, this.ws);
+  }
+
   // storage
   messages = new Set<string>();
 
diff --git a/websocket-handler.ts b/websocket-handler.ts
index 45143b7..f22349b 100644
--- a/websocket-handler.ts
+++ b/websocket-handler.ts
@@ -24,11 +24,12 @@ export interface WebSocketMessage {
   deletingMailbox?: string;
   assignedMailboxId?: string; // sent by server
   connectedMailboxId?: string; // sent by server
+  deletedMailbox?: string; // sent by server
 
   // subscribing to channel
   subscribeChannel?: string;
   unsubscribeChannel?: string;
-  subscribed?: boolean; // sent by server to confirm subscription
+  subscribed?: boolean; // sent by server
 
   //sending message
   messageChannel?: string;
@@ -195,7 +196,6 @@ export function processMessage(
     const mailbox = mailboxes.get(deletingMailbox);
     if (!mailbox) return;
     removeMailbox(mailbox);
-    ws.close();
   });
 
   // OTHER SERVER
@@ -215,7 +215,7 @@ export function removeExpiredMailboxes() {
 }
 
 export function removeMailbox(mailbox: Mailbox) {
-  subscriptionMap.deleteSubscriber(mailbox);
+  mailbox.delete();
   mailboxes.delete(mailbox.id);
 }