Verified-domain sending
Send plain text or HTML from any address on a domain you have verified in Resend, to as many as 50 recipients.
Transactional email
Resend in Core Forms
Send form emails through Resend and track delivery, bounces and complaints.
Bundled with Core Forms, the WordPress forms plugin with every premium feature in the box. No add-on tax.
The Resend action sends transactional email from your verified Resend domain whenever a form is submitted. To, Reply-To, subject and message take form variables, while the API key and sender address stay under admin control.
Sending is only half of it. Connect Resend's signed webhook and Core Forms records delivery, bounce, complaint, failure and suppression events next to the original send in the action log.
What you get
How Resend works in Core Forms
Retries that do not double-send
Every send carries a stable idempotency key, so a retry inside Resend's 24-hour window does not deliver the email twice.
Signed delivery events
Webhook events are verified against the signing secret with a five-minute timestamp tolerance. Duplicate events are ignored.
Separate log entries
Accepted sends and later delivery events are logged separately. Bounces, complaints, failures and suppressions show as failed entries.
Nothing extra stored
Recipient addresses and message bodies are not copied into the delivery-event records.
Set it up
Connect Resend in 3 minutes
- 1
Verify a domain and create a key
In Resend, verify your sending domain and create an API key.
- 2
Add the action
Form → Actions → Add Action → Send Email with Resend. Enter the key, from address, recipients, subject and message, then save.
- 3
Connect delivery events
Copy the webhook URL shown under the action into Resend, enable the email events you want, and paste the whsec_ signing secret back into the action.
Delivery webhook endpoint for one Resend action
https://example.com/wp-json/cf/v1/resend/FORM_ID/ACTION_IDPairs well with
Related integrations
Bundled with every Core Forms license.
Resend and every Core Forms-built integration on this site are included with your
license. Use code CFLAUNCH for 20% off either plan.