Verify Intercom leads before you sequence them

Where Intercom collects unverified emails

Intercom is often the first touch a prospect has with your product: the Messenger asks for an email to continue a chat, a lead form captures an address, or a product signup creates a contact. All of those entry points are low-friction by design, which also means they're low-verification. A visitor types "me@company" to get past the prompt, a tire-kicker drops a disposable inbox, and Intercom happily stores it as a lead.

That matters because Intercom is increasingly used for outbound: series, one-off email campaigns, and lifecycle messaging fire directly from those contacts. Every fake or mistyped address becomes a bounce that dents your sending reputation, and it also pollutes your reporting — inflated lead counts that never had a chance to convert. On the support side, a wrong reply-to email means your response to a conversation never reaches the customer.

Verifly gives you a live check on any Intercom contact's email. Fire it when a lead is created via webhook, or sweep existing contacts through the API, and use the deliverable / risky / undeliverable verdict plus disposable and role flags to decide who enters a sequence, who gets tagged for review, and who to drop.

Verify Intercom contacts via webhook

1. In Intercom, set up a webhook (or use the Developer Hub) to notify your endpoint on contact.created / contact.lead.created events.
2. Get a free Verifly key at verifly.email/api/v1/autonomous/register — 100 credits, no card, no captcha.
3. In your endpoint, read the contact's email from the Intercom payload and call Verifly's verify endpoint.
4. Write the verdict back onto the contact as a custom attribute (for example email_status), then gate your sequences on it.
5. Enroll only contacts tagged deliverable; tag risky ones for manual review and suppress undeliverable ones.

export default async function handler(req, res) {
  const email = req.body.data?.item?.email

  const vf = await fetch(
    `https://verifly.email/api/v1/verify?email=${encodeURIComponent(email)}`,
    { headers: { Authorization: 'Bearer vf_your_api_key' } }
  )
  const { result } = await vf.json()

  // then PATCH the Intercom contact with a custom attribute:
  // { custom_attributes: { email_status: result } }
  res.status(200).json({ email_status: result })
}