Resend

Resend is a developer-focused email API. Entrig connects to Resend using your API key and sends emails from your verified domain.

---

What you’ll need

• A Resend account
• A verified domain in Resend (required to send to any address outside @resend.dev)
• A Resend API key. Create one in Resend under API Keys → Create API Key

---

Configure

1. Open Channels → Email in Settings

   From the Entrig dashboard, go to Settings → Channels. Under the Email section, find Resend and click Configure.

2. Enter your API key

   Paste your Resend API key, then click Connect. Entrig calls the Resend API to fetch your verified domains.

3. Select a domain

   Choose a verified domain from the dropdown.

   If Resend returns no domains (this happens with send-only API keys that have Send scope but not Domain: Read), you can skip the selector and enter your From address manually instead.

4. Set the From address

   Enter the email address notifications will be sent from (e.g. notifications@yourdomain.com). It must use the domain you selected.

5. Set the From name (optional)

   Enter a display name that recipients will see (e.g. My App).

6. Save

---

API key scopes

A full-access API key works out of the box. If you prefer a scoped key, you need at minimum:

Scope	Purpose
Emails: Send	Required, used for every notification
Domains: Read	Optional, allows Entrig to list your domains automatically

Without Domains: Read, the domain dropdown will not appear. You can still configure by entering the From address directly.

---

Troubleshooting

”No verified domains found”

Cause: Your API key has send-only scope and cannot list domains, or you have no verified domains in Resend.

Fix: If you don’t have any verified domains, add one in Resend → Domains and complete DNS verification. If you do have domains but are using a send-only key, enter your From address manually. Entrig handles this gracefully.

Emails not arriving

Cause: The domain DNS records (SPF, DKIM) are not fully propagated, or the domain is not yet verified in Resend.

Fix: Check your domain status in the Resend dashboard. DNS changes can take up to 48 hours to propagate globally.

”Invalid API key”

Cause: The API key was deleted or regenerated in Resend after it was saved.

Fix: Generate a new API key in Resend and reconfigure the channel.