# Message.bounce\_detected is not working on test webhooks **URL:** \ **Category:** Question and Answers\ **Tags:** email-api, webhooks, events\ **Created:** [September 12, 2025, 5:55am UTC](https://forums.nylas.com/t/message-bounce-detected-is-not-working-on-test-webhooks/916 "2025-09-12T05:55:32Z")\ **Posts on this page:** 11\ **Page:** 1
**Author:** ![Harry](https://sea1.discourse-cdn.com/flex015/user_avatar/forums.nylas.com/harry/32/333_2.png) [@Harry](https://forums.nylas.com/u/Harry)\ **Post date:** [September 12, 2025, 5:55am UTC](https://forums.nylas.com/t/message-bounce-detected-is-not-working-on-test-webhooks/916/1 "2025-09-12T05:55:32Z")
Hello Nylas Team, I’m currently testing webhooks in a development environment to expand our scopes to include `gmail.readonly` and `gmail.modify`. Since tracking replies and bounces is a critical feature, I need a clear understanding of why this issue is occurring and how to resolve it. A message that is clearly a bounce is only triggering a `thread.replied` event. Why is this happening, and what is the fastest way to fix it? Is there anything I might have missed? ![image](https://us1.discourse-cdn.com/flex015/uploads/nylas3/original/1X/cc54bf405738440f79a1491afef83be268b8f951.png) ![image](https://us1.discourse-cdn.com/flex015/uploads/nylas3/original/1X/95ee7d6d9c97a844ca1ef2d3967841367f363637.png) ![image](https://us1.discourse-cdn.com/flex015/uploads/nylas3/original/1X/32ccb5b442ff1b8386b628a19c447f8b010d437a.png) The following is the `snippet` from the object found in the `message.created` or `updated` webhook for an email that was intentionally bounced: > 주소를 찾을 수 없음 [doviestudio.com](http://doviestudio.com) 도메인을 찾지 못하여 [example1@example.com](mailto:example1@example.com) 주소로 메일을 전송하지 못했습니다. 오타나 불필요한 공백이 있는지 확인한 후 다시 시도하세요. 자세히 알아보기 응답은 다음과 같습니다. DNS Error: DNS type ‘mx’ lookup of” > 주소를 찾을 수 없음 [example2@example.com](mailto:example2@example.com) 주소를 찾을 수 없거나 해당 주소에서 메일을 받을 수 없어 메일이 전송되지 않았습니다. 자세히 알아보기 응답은 다음과 같습니다. 550 5.1.1 The email account that you tried to reach does not exist. Please try ![image](https://us1.discourse-cdn.com/flex015/uploads/nylas3/original/1X/f95266e1c579eadadf17a59f5112c65bc7d8f992.png) Thnak you Have a good day!! ---
**Author:** ![chitreshd](https://avatars.discourse-cdn.com/v4/letter/c/f14d63/32.png) [@chitreshd](https://forums.nylas.com/u/chitreshd)\ **Post date:** [September 12, 2025, 6:44pm UTC](https://forums.nylas.com/t/message-bounce-detected-is-not-working-on-test-webhooks/916/2 "2025-09-12T18:44:30Z")
Hi I am the lead for this feature. Can you provide me with the grant\_id for your account? ---
**Author:** ![Harry](https://sea1.discourse-cdn.com/flex015/user_avatar/forums.nylas.com/harry/32/333_2.png) [@Harry](https://forums.nylas.com/u/Harry)\ **Post date:** [September 13, 2025, 6:00am UTC](https://forums.nylas.com/t/message-bounce-detected-is-not-working-on-test-webhooks/916/3 "2025-09-13T06:00:31Z")
Hi! the grant\_id is **936aa883-5b63-4284-8f38-239a5d1523bd**. ---
**Author:** ![chitreshd](https://avatars.discourse-cdn.com/v4/letter/c/f14d63/32.png) [@chitreshd](https://forums.nylas.com/u/chitreshd)\ **Post date:** [September 15, 2025, 4:49pm UTC](https://forums.nylas.com/t/message-bounce-detected-is-not-working-on-test-webhooks/916/4 "2025-09-15T16:49:08Z")
HI @Harry As I had suspected, root cause is non-english language in your email. Unfortunately, for now our bounce detection logic works only on English language. This was a conscious decision because we need to be able to parse email body to provide with confidence all the fields we send out in a `bounce_detected` webhooks. So although we can detect the bounce, we can parse out all the information. Question: Do you need support for specific languages or is your usecase primarily in English? ---
**Author:** ![Harry](https://sea1.discourse-cdn.com/flex015/user_avatar/forums.nylas.com/harry/32/333_2.png) [@Harry](https://forums.nylas.com/u/Harry)\ **Post date:** [September 15, 2025, 5:07pm UTC](https://forums.nylas.com/t/message-bounce-detected-is-not-working-on-test-webhooks/916/5 "2025-09-15T17:07:33Z")
Hi! We primarily use emails in Korean, and this feature is critical, so we need a response as soon as possible. If Korean language support is expected to take a long time, is there a quick way for me to detect `bounce_detected` myself? I would appreciate it if you could provide some guidance on this. ---
**Author:** ![chitreshd](https://avatars.discourse-cdn.com/v4/letter/c/f14d63/32.png) [@chitreshd](https://forums.nylas.com/u/chitreshd)\ **Post date:** [September 15, 2025, 5:32pm UTC](https://forums.nylas.com/t/message-bounce-detected-is-not-working-on-test-webhooks/916/6 "2025-09-15T17:32:36Z")
HI We are discussing an enhancement where we can enable this partial detection. Whats your AppID? We can enable the relaxed bounce deteciton for your App to start with. Thanks Chitresh ---
**Author:** ![Harry](https://sea1.discourse-cdn.com/flex015/user_avatar/forums.nylas.com/harry/32/333_2.png) [@Harry](https://forums.nylas.com/u/Harry)\ **Post date:** [September 16, 2025, 12:03am UTC](https://forums.nylas.com/t/message-bounce-detected-is-not-working-on-test-webhooks/916/7 "2025-09-16T00:03:10Z")
Thank you for the quick response! If AppID refers to the Client ID in the dashboard, it’s **19209995-54c1-4683-b1c2-ec873e47845f**. What level of detection is possible with relaxed bounce detection? ---
**Author:** ![chitreshd](https://avatars.discourse-cdn.com/v4/letter/c/f14d63/32.png) [@chitreshd](https://forums.nylas.com/u/chitreshd)\ **Post date:** [September 16, 2025, 7:42pm UTC](https://forums.nylas.com/t/message-bounce-detected-is-not-working-on-test-webhooks/916/8 "2025-09-16T19:42:53Z")
Thanks. I can work with ClientID. We haven’t scoped the feature yet. Will keep you posted. ---
**Author:** ![Harry](https://sea1.discourse-cdn.com/flex015/user_avatar/forums.nylas.com/harry/32/333_2.png) [@Harry](https://forums.nylas.com/u/Harry)\ **Post date:** [September 17, 2025, 1:44am UTC](https://forums.nylas.com/t/message-bounce-detected-is-not-working-on-test-webhooks/916/9 "2025-09-17T01:44:27Z")
Thanks for your update. Just to confirm — has the relaxed bounce detection already been enabled for my App (ClientID: `19209995-54c1-4683-b1c2-ec873e47845f`), or is it still pending until the feature scope is finalized? ---
**Author:** ![chitreshd](https://avatars.discourse-cdn.com/v4/letter/c/f14d63/32.png) [@chitreshd](https://forums.nylas.com/u/chitreshd)\ **Post date:** [September 17, 2025, 4:11am UTC](https://forums.nylas.com/t/message-bounce-detected-is-not-working-on-test-webhooks/916/10 "2025-09-17T04:11:06Z")
Not yet enabled. We are still scoping the feature. ---
**Author:** ![Harry](https://sea1.discourse-cdn.com/flex015/user_avatar/forums.nylas.com/harry/32/333_2.png) [@Harry](https://forums.nylas.com/u/Harry)\ **Post date:** [September 17, 2025, 9:32am UTC](https://forums.nylas.com/t/message-bounce-detected-is-not-working-on-test-webhooks/916/11 "2025-09-17T09:32:15Z")
Thank you for your continued attention and care. I’ll ask for the fastest possible response once a decision is made!