Update Thread

import { Resend } from 'resend';

const resend = new Resend('re_xxxxxxxxx');

const { data, error } = await resend.inboxes.threads.update({
  inboxId: 'b3e2b2b6-3f0e-4c8e-9ad3-2f43a1e2c7f1',
  threadId: '4d8e2a1c-9b3f-4c6d-8a21-3e5f7c9c0d12',
  read: true,
  folder: 'spam',
});

curl -X PATCH 'https://api.resend.com/inboxes/b3e2b2b6-3f0e-4c8e-9ad3-2f43a1e2c7f1/threads/4d8e2a1c-9b3f-4c6d-8a21-3e5f7c9c0d12' \
     -H 'Authorization: Bearer re_xxxxxxxxx' \
     -H 'Content-Type: application/json' \
     -d $'{
  "read": true,
  "folder": "spam"
}'

curl -X PATCH 'https://api.resend.com/inboxes/b3e2b2b6-3f0e-4c8e-9ad3-2f43a1e2c7f1/threads/4d8e2a1c-9b3f-4c6d-8a21-3e5f7c9c0d12' \
     -H 'Authorization: Bearer re_xxxxxxxxx' \
     -H 'Content-Type: application/json' \
     -d $'{
  "folder": "inbox"
}'

curl -X PATCH 'https://api.resend.com/inboxes/b3e2b2b6-3f0e-4c8e-9ad3-2f43a1e2c7f1/threads/4d8e2a1c-9b3f-4c6d-8a21-3e5f7c9c0d12' \
     -H 'Authorization: Bearer re_xxxxxxxxx' \
     -H 'Content-Type: application/json' \
     -d $'{
  "add_label_ids": ["7f9c1d2e-4a6b-4c3d-8e15-9b0a7c6d5e34"]
}'

curl -X PATCH 'https://api.resend.com/inboxes/b3e2b2b6-3f0e-4c8e-9ad3-2f43a1e2c7f1/threads/4d8e2a1c-9b3f-4c6d-8a21-3e5f7c9c0d12' \
     -H 'Authorization: Bearer re_xxxxxxxxx' \
     -H 'Content-Type: application/json' \
     -d $'{
  "add_label_ids": ["7f9c1d2e-4a6b-4c3d-8e15-9b0a7c6d5e34"],
  "remove_label_ids": ["2c6a8e4b-1d3f-4a5c-9b7e-0f1a2b3c4d5e"]
}'

resend inboxes threads update b3e2b2b6-3f0e-4c8e-9ad3-2f43a1e2c7f1 4d8e2a1c-9b3f-4c6d-8a21-3e5f7c9c0d12 \
  --read \
  --folder spam

{
  "object": "inbox_thread",
  "id": "4d8e2a1c-9b3f-4c6d-8a21-3e5f7c9c0d12",
  "subject": "Refund for order 1041",
  "folder": "spam",
  "labels": [],
  "read": true
}

PATCH

inboxes

:inbox_id

threads

:thread_id

import { Resend } from 'resend';

const resend = new Resend('re_xxxxxxxxx');

const { data, error } = await resend.inboxes.threads.update({
  inboxId: 'b3e2b2b6-3f0e-4c8e-9ad3-2f43a1e2c7f1',
  threadId: '4d8e2a1c-9b3f-4c6d-8a21-3e5f7c9c0d12',
  read: true,
  folder: 'spam',
});

curl -X PATCH 'https://api.resend.com/inboxes/b3e2b2b6-3f0e-4c8e-9ad3-2f43a1e2c7f1/threads/4d8e2a1c-9b3f-4c6d-8a21-3e5f7c9c0d12' \
     -H 'Authorization: Bearer re_xxxxxxxxx' \
     -H 'Content-Type: application/json' \
     -d $'{
  "read": true,
  "folder": "spam"
}'

curl -X PATCH 'https://api.resend.com/inboxes/b3e2b2b6-3f0e-4c8e-9ad3-2f43a1e2c7f1/threads/4d8e2a1c-9b3f-4c6d-8a21-3e5f7c9c0d12' \
     -H 'Authorization: Bearer re_xxxxxxxxx' \
     -H 'Content-Type: application/json' \
     -d $'{
  "folder": "inbox"
}'

curl -X PATCH 'https://api.resend.com/inboxes/b3e2b2b6-3f0e-4c8e-9ad3-2f43a1e2c7f1/threads/4d8e2a1c-9b3f-4c6d-8a21-3e5f7c9c0d12' \
     -H 'Authorization: Bearer re_xxxxxxxxx' \
     -H 'Content-Type: application/json' \
     -d $'{
  "add_label_ids": ["7f9c1d2e-4a6b-4c3d-8e15-9b0a7c6d5e34"]
}'

curl -X PATCH 'https://api.resend.com/inboxes/b3e2b2b6-3f0e-4c8e-9ad3-2f43a1e2c7f1/threads/4d8e2a1c-9b3f-4c6d-8a21-3e5f7c9c0d12' \
     -H 'Authorization: Bearer re_xxxxxxxxx' \
     -H 'Content-Type: application/json' \
     -d $'{
  "add_label_ids": ["7f9c1d2e-4a6b-4c3d-8e15-9b0a7c6d5e34"],
  "remove_label_ids": ["2c6a8e4b-1d3f-4a5c-9b7e-0f1a2b3c4d5e"]
}'

resend inboxes threads update b3e2b2b6-3f0e-4c8e-9ad3-2f43a1e2c7f1 4d8e2a1c-9b3f-4c6d-8a21-3e5f7c9c0d12 \
  --read \
  --folder spam

{
  "object": "inbox_thread",
  "id": "4d8e2a1c-9b3f-4c6d-8a21-3e5f7c9c0d12",
  "subject": "Refund for order 1041",
  "folder": "spam",
  "labels": [],
  "read": true
}

Inboxes are currently in private beta and only available to a limited number of users. The response shape might change before GA.Get early access if you’re interested in testing this feature.Once you have access, upgrade your Resend SDK to use the new methods:

npm install resend@6.33.0

npm install -g resend-cli@2.25.0

At least one of read, folder, add_label_ids, or remove_label_ids is required. A label ID cannot be both added and removed in the same request. Moving a thread out of trash restores it and clears its deletion deadline. The changes apply in this order: read, folder, added labels, removed labels. They are not atomic, so a 404 for a label leaves the earlier changes applied. A body with none of these keys returns a 422, even when it has other keys.

Path Parameters

Body Parameters

boolean

Marks every message in the thread read or unread.

string

Moves the thread to this folder. One of inbox, archive, spam, or trash. sent is assigned automatically and cannot be set.

Folders

Every thread sits in exactly one folder within its inbox.

Folder	Meaning
`inbox`	The default. The thread holds at least one received message.
`archive`	The thread was archived.
`spam`	The thread was marked as spam.
`trash`	The thread is scheduled for deletion in 30 days.
`sent`	Threads whose messages are all outbound.

You can move a thread to inbox, archive, spam, or trash. sent is assigned automatically.

Response Fields

string

Always inbox_thread.

string

The ID of the thread.

string | null

The subject of the thread.

string

The folder the thread lives in after the update.

array

The labels attached to the thread, each with an id, name, and color.

boolean

True only when every message in the thread is read.

import { Resend } from 'resend';

const resend = new Resend('re_xxxxxxxxx');

const { data, error } = await resend.inboxes.threads.update({
  inboxId: 'b3e2b2b6-3f0e-4c8e-9ad3-2f43a1e2c7f1',
  threadId: '4d8e2a1c-9b3f-4c6d-8a21-3e5f7c9c0d12',
  read: true,
  folder: 'spam',
});

curl -X PATCH 'https://api.resend.com/inboxes/b3e2b2b6-3f0e-4c8e-9ad3-2f43a1e2c7f1/threads/4d8e2a1c-9b3f-4c6d-8a21-3e5f7c9c0d12' \
     -H 'Authorization: Bearer re_xxxxxxxxx' \
     -H 'Content-Type: application/json' \
     -d $'{
  "read": true,
  "folder": "spam"
}'

curl -X PATCH 'https://api.resend.com/inboxes/b3e2b2b6-3f0e-4c8e-9ad3-2f43a1e2c7f1/threads/4d8e2a1c-9b3f-4c6d-8a21-3e5f7c9c0d12' \
     -H 'Authorization: Bearer re_xxxxxxxxx' \
     -H 'Content-Type: application/json' \
     -d $'{
  "folder": "inbox"
}'

curl -X PATCH 'https://api.resend.com/inboxes/b3e2b2b6-3f0e-4c8e-9ad3-2f43a1e2c7f1/threads/4d8e2a1c-9b3f-4c6d-8a21-3e5f7c9c0d12' \
     -H 'Authorization: Bearer re_xxxxxxxxx' \
     -H 'Content-Type: application/json' \
     -d $'{
  "add_label_ids": ["7f9c1d2e-4a6b-4c3d-8e15-9b0a7c6d5e34"]
}'

curl -X PATCH 'https://api.resend.com/inboxes/b3e2b2b6-3f0e-4c8e-9ad3-2f43a1e2c7f1/threads/4d8e2a1c-9b3f-4c6d-8a21-3e5f7c9c0d12' \
     -H 'Authorization: Bearer re_xxxxxxxxx' \
     -H 'Content-Type: application/json' \
     -d $'{
  "add_label_ids": ["7f9c1d2e-4a6b-4c3d-8e15-9b0a7c6d5e34"],
  "remove_label_ids": ["2c6a8e4b-1d3f-4a5c-9b7e-0f1a2b3c4d5e"]
}'

resend inboxes threads update b3e2b2b6-3f0e-4c8e-9ad3-2f43a1e2c7f1 4d8e2a1c-9b3f-4c6d-8a21-3e5f7c9c0d12 \
  --read \
  --folder spam

{
  "object": "inbox_thread",
  "id": "4d8e2a1c-9b3f-4c6d-8a21-3e5f7c9c0d12",
  "subject": "Refund for order 1041",
  "folder": "spam",
  "labels": [],
  "read": true
}

API Reference

Sending

Receiving

Inboxes

Inbox Labels

Inbox Threads

Inbox Drafts

Inbox Agent

Broadcasts

Automations

Events

Templates

Contacts

Contact Properties

Contact Imports

Segments

Topics

Audiences

Domains

Logs

Usage

API Keys

Suppressions

Authorized Apps

Webhooks

OAuth

Path Parameters

Body Parameters

Folders

Response Fields

​Path Parameters

​Body Parameters

​Folders

​Response Fields

Path Parameters

Body Parameters

Folders

Response Fields