---
title: "Remove labels from an inbox thread"
method: DELETE
path: "/email_inboxes/{inbox_id}/threads/{thread_id}/labels"
tags: ["Email Inboxes"]
---

# Remove labels from an inbox thread

`DELETE /email_inboxes/{inbox_id}/threads/{thread_id}/labels`

## Request

- Base URL: `https://api.telnyx.com/v2`
- URL: `https://api.telnyx.com/v2/email_inboxes/{inbox_id}/threads/{thread_id}/labels`
- Auth: HTTP bearer

Removes one or more labels from a thread. Idempotent — removing a label
the thread does not carry is a no-op and still returns 200.

## Path parameters

- `inbox_id` string, uuid, required
- `thread_id` string, uuid, required

## Request body

- LabelMutationRequest: Labels to add or remove. Both operations are idempotent set operations, so a retried request converges instead of failing.
  - `labels` string[], required: One or more labels. Each label is a freeform, case-sensitive string of at most 255 characters; a message or thread may carry at most 50 labels. The `telnyx:` prefix is a reserved system namespace and is rejected on customer writes.

## Response `200`

The thread identity and its current label set.

- object
  - `data` object, required
    - `id` string, uuid, required
    - `record_type` 'email_thread', required
    - `inbox_id` string, uuid
    - `labels` string[], required

## Other responses

- `401`: Not authorized (10006).
- `404`: Resource not found (10001).
- `422`: Validation Failed (10015) or changeset validation error.
- `503`: Inbound label storage is temporarily unavailable.

## Changes

- **2026-10-15** `a72569d69430`: 1 info
  - endpoint added

[Operation history](https://skmtc.dev/team-telnyx/apis/telnyx-api/changes/email_inboxes/:inbox_id/threads/:thread_id/labels/delete.md)

---

[API](https://skmtc.dev/team-telnyx/apis/telnyx-api.md) - [All operations](https://skmtc.dev/team-telnyx/apis/telnyx-api/llms.txt) - [OpenAPI document](https://skmtc.dev/team-telnyx/apis/telnyx-api/revisions/0f17b8167873?raw)