Enterprise Tool

Resend

Send transactional emails and track delivery events with Resend's developer-first email API

Resend is a modern email API built for developers, offering high deliverability, instant setup, and a clean REST interface. CipherSense Agents integrates with Resend to send transactional emails, batch campaigns, and track delivery status. You can also trigger workflows from email delivery events (bounced, complained, opened, clicked) via Resend's built-in webhook support (powered by Svix).

Official documentation

Setup

Get your API key

Log in to resend.com and go to API Keys > Create API Key. Give it a name, set the permission to 'Sending access', and copy the key (it starts with re_). You will only see it once.

Resend Dashboard

Verify a sending domain

Go to Resend > Domains > Add Domain. Enter your domain and add the DNS records shown (SPF, DKIM). Once verified, you can send from any address on that domain. You can also use the Resend sandbox address (onboarding@resend.dev) for testing without a verified domain.

Create a webhook for delivery events (optional)

Go to Resend > Webhooks > Add Webhook. Set the endpoint URL to https://<your-domain>/api/integrations/resend/webhook. Select the events you want (e.g. email.bounced, email.complained). Copy the Signing Secret (whsec_...) — paste it into the Webhook Secret field in CipherSense Agents.

Add the integration in CipherSense Agents

Go to Project > Integrations > Add Integration > Resend. Enter your API Key, default From Email (must be from a verified domain), an optional From Name, and optionally the Webhook Secret. Click Save & Test.

Connection Fields

Fields required when adding this integration in your Project › Integrations.

Field	Required	Description
API Key	Required	Your Resend API key. Generate one from Resend > API Keys.
Default From Email	Optional	Must be from a verified domain. Can be overridden per workflow node.
Default From Name	Optional	Display name shown in the email client. Can be overridden per node.
Webhook Secret (optional)	Optional	From Resend > Webhooks. Required to trigger workflows from delivery events.

Common Use Cases

Send AI-generated email summaries or reports to usersTrigger follow-up workflows when an email bounces or is complained aboutSend personalised outreach emails from CRM enrichment workflowsBatch-send onboarding emails after a new user signs upAlert the team when a critical email is opened or clickedChain: AI drafts email → Resend delivers → bounce event triggers retry workflow

Ready to connect Resend?

Add this integration from your project dashboard and wire it into a workflow.

Open Dashboard ← Back to Integrations