Resend Send Email: Resend action

Inputs

The fields this action accepts.

Every field can be mapped from an upstream trigger, AI step, table row, or hard-coded literal.

Field	Type	Required	Description
From from	string	Required	Sender email (must be from a verified domain)
To to	string	Required	Recipient email (comma-separated for multiple)
Subject subject	string	Required	Subject. Example: Welcome to our platform!
HTML Body html	string	Required	HTML content of the email
Plain Text Body text	string	Optional	Plain text fallback
CC cc	string	Optional	CC recipients (comma-separated)
BCC bcc	string	Optional	BCC recipients (comma-separated)
Reply-To reply_to	string	Optional	Reply-To. e.g. "support@company.com"
Tag Name tags_name	string	Optional	Tag name for email analytics
Tag Value tags_value	string	Optional	Tag Value. Example: welcome-email

Sample request

{
  "from": "noreply@yourcompany.com",
  "to": "user@example.com",
  "subject": "e.g. Welcome to our platform!",
  "html": "{{trigger.html}}",
  "text": "{{trigger.text}}"
}

Returns

{
  "id": "49a3999c-0ce1-4ea6-ab68-afcd6dc2e794"
}

Use these fields in downstream nodes for routing, logging, or error handling.

FAQ

Questions about Resend Send Email.

What does the Resend Send Email action do in Resend?

Sends transactional email — modern developer-friendly alternative to SendGrid/Postmark. Supports React Email JSX rendered server-side or plain HTML, plus batched per-recipient personalisation.

What inputs does Resend Send Email require?

Required: From, To, Subject, HTML Body. Every input accepts a static value or a variable from any upstream node in your workflow.

Can I use dynamic inputs from earlier workflow nodes?

Yes. Any field on this action can pull values from upstream nodes, whether that's a form response, a trigger payload, an AI output, or a lookup result.

What happens if Resend returns an error?

The workflow pauses on the failed node, the error message is captured in the run log, and you can retry the run with one click. Auto-retry policies are configurable per workflow with exponential backoff up to 5 attempts.

Does Resend Send Email support batch operations?

Yes. Run Resend Send Email inside a Loop node to process arrays. Tiny Command handles Resend's rate limits automatically so you don't have to throttle manually.

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