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Qualify inbound leads by validating email and WhatsApp with ProWebLook and Slack

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Created by: proweblook || proweblook
proweblook

Last update

Last update 8 hours ago

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Quick overview

This workflow captures demo-request form submissions, verifies email deliverability with ProWebLook, checks whether the lead’s phone number is registered on WhatsApp, and posts qualified leads to Slack while routing undeliverable emails for review.

How it works

  1. Receives a new lead submission from an n8n Form with name, work email, and an E.164 phone number.
  2. Normalizes the input by trimming whitespace, lowercasing the email address, and keeping the phone number in E.164 format.
  3. Uses ProWebLook to verify the email’s deliverability status.
  4. If the email is deliverable, uses ProWebLook to check whether the phone number is registered on WhatsApp.
  5. Builds a lead summary including email and WhatsApp verdicts and a recommended outreach channel.
  6. Posts the verified lead summary to a selected Slack channel.
  7. If the email is not deliverable, formats the lead with the ProWebLook verdict and rejection reason for manual review.

Setup

  1. Install the community node package n8n-nodes-proweblook in your n8n instance.
  2. Create and select a ProWebLook API credential for the email verification and WhatsApp check steps.
  3. Create a Slack credential, then set the target Slack channel in the Slack message node.
  4. If you embed the n8n Form in another site or tool, copy the form URL and link it from your signup flow.

Requirements

  • ProWebLook account with API key (50 free Email, Phone & WhatsApp credits included on signup at proweblook.com)