Does Resend have an inbox?

Resend can receive email, but it delivers messages to your app by webhook and API instead of showing them in an inbox. HelloBox connects to Resend and gives you a shared inbox for those domains.

How do I reply to emails received with Resend?

Connect your Resend account to HelloBox. Incoming mail appears as conversations, and your replies are sent through your own Resend account from the same address, correctly threaded.

Is HelloBox made by Resend?

No. HelloBox is an independent inbox that works with Resend and Amazon SES. It isn't affiliated with Resend.

Can I send newsletters from HelloBox with Resend?

Yes. Campaigns on Resend use Resend Broadcasts, with your contacts synced to a segment in your own Resend account, an unsubscribe link in every campaign and opt-outs honored automatically.

Is there an inbox for Resend?

Updated November 9, 2026

Short answer

Resend can receive email on your domains, but it delivers each message to your app as an email.received webhook and through its API. It isn't a mailbox for reading, replying and sharing. For that, connect your Resend account to HelloBox: sign in with Resend, and your domains, receiving and Broadcasts work in a shared inbox straight away. Your API keys don't change, and it's free for one person.

How Resend handles incoming mail

Resend is a developer-first sending API. Its receiving feature lets you add an MX record for a domain, after which Resend accepts mail for it and notifies your app with a webhook. Your code fetches the message through the API and decides what to do with it.

That's ideal for parsing replies into your product. It's not a place where a person reads support@ every morning, answers a customer, or hands a thread to a colleague.

Connect Resend to HelloBox

Sign up at hellobox.app and choose Connect Resend.
Sign in with your Resend account. Your domains come along.
Turn receiving on for a domain in Resend if it isn't already. HelloBox tells you if a domain isn't ready.

Mail to that domain now shows up in HelloBox as threaded conversations. Replies go out through your own Resend account, from the same address. Campaigns use Resend Broadcasts, with contacts synced to a segment in your account.

What stays the same

Your app's API keys and transactional email keep working unchanged.
Resend bills you for email volume at its own prices. HelloBox plans limit storage and contacts, not how many emails you send.
Access tokens and webhook secrets are encrypted before HelloBox stores them, and you can disconnect at any time.

HelloBox is an independent product and isn't affiliated with Resend.

Frequently asked questions

Does Resend have an inbox?: Resend can receive email, but it delivers messages to your app by webhook and API instead of showing them in an inbox. HelloBox connects to Resend and gives you a shared inbox for those domains.
How do I reply to emails received with Resend?: Connect your Resend account to HelloBox. Incoming mail appears as conversations, and your replies are sent through your own Resend account from the same address, correctly threaded.
Is HelloBox made by Resend?: No. HelloBox is an independent inbox that works with Resend and Amazon SES. It isn't affiliated with Resend.
Can I send newsletters from HelloBox with Resend?: Yes. Campaigns on Resend use Resend Broadcasts, with your contacts synced to a segment in your own Resend account, an unsubscribe link in every campaign and opt-outs honored automatically.