diff --git a/src/instrumentation.ts b/src/instrumentation.ts
index e0d3191..50bf09b 100644
--- a/src/instrumentation.ts
+++ b/src/instrumentation.ts
@@ -1,5 +1,19 @@
 export async function register() {
   if (process.env.NEXT_RUNTIME === "nodejs") {
+    // Node terminates the whole process on an unhandled promise rejection
+    // by default — one bug in any best-effort/fire-and-forget path (push
+    // notifications, a background job, ...) would otherwise take down every
+    // in-flight request, not just the one that triggered it. Log-and-continue
+    // is the right call here: anything that reaches this handler was already
+    // meant to be non-fatal (a real, must-not-fail error should be caught and
+    // handled at its own call site instead).
+    process.on("uncaughtException", (err) => {
+      console.error("[process] uncaughtException (ignored, server continues)", err);
+    });
+    process.on("unhandledRejection", (reason) => {
+      console.error("[process] unhandledRejection (ignored, server continues)", reason);
+    });
+
     const { ensureTelegramBotStarted } = await import("@/lib/telegram/bot");
     await ensureTelegramBotStarted();
 
diff --git a/src/lib/tickets/service.ts b/src/lib/tickets/service.ts
index 13c95fc..0474d37 100644
--- a/src/lib/tickets/service.ts
+++ b/src/lib/tickets/service.ts
@@ -169,9 +169,15 @@ async function appendMessage(params: {
   // Fire-and-forget: push delivery is a best-effort side channel for
   // backgrounded/frozen tabs, not part of the message-creation contract —
   // callers (mail ingestion, the API routes) must not wait on or fail from
-  // a slow/unreachable push service.
+  // a slow/unreachable push service. The .catch() here is load-bearing:
+  // this app has no global unhandledRejection handler, so an uncaught
+  // rejection from this call would otherwise crash the whole Node process
+  // (Node terminates on unhandled rejections by default) — taking down
+  // every in-flight request, not just this one message.
   if (params.authorType === "customer") {
-    void notifyPushForCustomerMessage(dto, messageDto, params.ticketIsNew);
+    notifyPushForCustomerMessage(dto, messageDto, params.ticketIsNew).catch((err) => {
+      console.error("[push] notifyPushForCustomerMessage failed:", err);
+    });
   }
 
   return { ticket: dto, message: messageDto };