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Resend provides all the tools you need to host email inboxes on your verified domains. Create an inbox to manage conversation threads for a single email address, such as a dedicated address for support emails. Inboxes are useful for:
  • AI agent email.
  • Support and triage for contact forms.
  • Shared team inboxes.
  • Replies for transactional email.

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How Inboxes work

Inboxes mirror the familiar email inbox structure, using threads, labels, and drafts to organize your conversations. inbox, sent, archive, trash, and spam folders are built in to your Resend Inbox.
Receiving email in an inbox is different from receiving emails, which delivers inbound messages for a domain to your own webhook endpoint. Use Inboxes when you want Resend to store, thread, and organize conversations for you.
All of this is available through the dashboard, the API, the CLI, and the MCP server. You can use the dashboard with your team, build your own experience upon the API, and provide inboxes to AI agents.

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Inboxes features

With Resend Inboxes you can:
  • Draft and send new emails from a dedicated email address that users can reply to.
  • Receive inbound emails and attachments and reply to them in a threaded conversation.
  • Forward received emails to another email address.
  • Read threads, and move them between inbox, archive, spam or trash folders.
  • Assign threads to teammates.
  • Organize threads with custom labels.
  • Search and filter threads.
  • Configure an agent to perform actions on inbound mail.
  • Receive webhooks for inbox events.

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Prerequisites

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Quickstart

Create an Inbox in the Inboxes Dashboard. Or, get started with the Inboxes API and SDKs, CLI commands, or MCP server. To create an inbox in the Dashboard:
1

Navigate to the Inboxes Dashboard page.

2

Select Create inbox.

3

Enter the address.

4

Choose the domain from your list of verified domains.

5

Send a test email to the new address.

From any email account, send a message to the inbox address. It appears in the Inbox folder as a new thread within a few seconds.
6

Open the thread and reply.

Select the thread, click Reply, write your message, and click Send. The reply goes out from the inbox address and stays in the same thread.

Create inboxes

Create an address on a verified domain, or forward an existing address.

Manage inboxes

Rename, update, and delete inboxes.

Manage threads

Read, search, and organize conversations, and reply to or forward emails.

Drafts

Write a message now and send it later.

Labels

Tag threads with colored labels to keep them organized.

Inbox agent

Let the built-in agent triage incoming threads from your instructions.