Smartlead Webhook

Endpoint

Your webhook URL is shown in Settings → Integrations → Webhooks → Smartlead. It looks like:

POST https://api.yourdomain.com/inbound/smartlead/<your-workspace-id>

Copy it directly from the UI — your workspace ID is already embedded.

Auth

Smartlead webhooks are not signed by default. For an extra layer of protection, set SMARTLEAD_WEBHOOK_SECRET in nous.env and append ?secret=<value> to the URL when pasting it into Smartlead. Nous rejects any inbound request whose query string doesn’t match.

Setup in Smartlead

Smartlead webhooks are configured per campaign.

Open the campaign you want to track.
Go to Settings → Webhooks → Add Webhook.
Paste the URL from Nous and tick the events you want.
Repeat for every campaign you care about.

Supported events

Smartlead event	Activity logged	Creates contact?
`EMAIL_REPLIED`	`email_received`	Yes
`EMAIL_SENT`	`email_sent`	No
`EMAIL_OPENED`	`email_opened`	No
`EMAIL_CLICKED`	`email_opened`	No
`EMAIL_BOUNCED`	`email_bounced`	No
`EMAIL_UNSUBSCRIBED`	`email_bounced`	No

Replies create a new contact if one doesn’t exist yet. All other events are update-only.

Payload

Nous reads these fields from the Smartlead payload:

{
  "event": "EMAIL_REPLIED",
  "campaign_id": 123,
  "campaign_name": "Q2 Outreach",
  "lead": {
    "email": "prospect@company.com",
    "first_name": "Jane",
    "last_name": "Smith",
    "company_name": "Acme"
  },
  "reply": { "text": "Thanks for reaching out..." },
  "message_id": "msg_abc123",
  "timestamp": "2026-05-26T12:00:00Z"
}

Deduplication

Events are deduplicated by message_id. If Smartlead retries a delivery, the duplicate is silently dropped.

Getting Started

Installation

Providers

Smartlead Webhook

Endpoint

Auth

Setup in Smartlead

Supported events

Payload

Deduplication

​Endpoint

​Auth

​Setup in Smartlead

​Supported events

​Payload

​Deduplication

Endpoint

Auth

Setup in Smartlead

Supported events

Payload

Deduplication