BillionVerify
Sign In
← All Newsletter & ESP Workflows
ZoomBillionVerifyMailchimp

Verify webinar attendees before Mailchimp (Zoom → Mailchimp)

A Zoom webinar registrant is verified before being added to a Mailchimp audience for follow-up emails.

Get a free API keyInstall the n8n node

Why verify before the send

Event registration forms collect addresses fast and loose. Pushing them straight into Mailchimp pollutes your audience, hurts your sending reputation, and wastes your subscriber quota on addresses that bounce.

The workflow

Zoom → BillionVerify → Mailchimp — verification sits right before the send.

zoom
Zoom Trigger
billionverify
Verify Email
IF deliverable
mailchimp
Add to audience
Skip invalid

Node by node

  1. 1
    Zoom TriggerTrigger· zoom

    Fires when a new attendee registers for the webinar.

  2. 2
    Verify EmailVerify· billionverify

    The BillionVerify node, operation "Verify Email". Map its Email field to the address from the previous node. It returns status (valid / invalid / risky / catch-all / role / disposable), is_deliverable, a confidence score, and the reason — all before anything is sent.

  3. 3
    IF deliverableLogic· n8n

    Branches on the verification result. Condition: is_deliverable is true. The true branch continues to the send; the false branch skips the send and flags the contact.

  4. 4
    Add to audienceSend· mailchimp

    Adds deliverable registrants to the Mailchimp audience for reminders and follow-ups.

  5. 5
    Skip invalidLogic· n8n

    For the false branch: skip the add so invalid addresses never enter your audience or count against your plan.

When to use this

  • Webinar and event teams syncing registrants to an ESP.
  • Marketers protecting Mailchimp reputation and subscriber limits.
  • Demand-gen flows that follow up with attendees by email.

Three ways to connect

n8n node

Install the BillionVerify community node and drop it into this workflow.

Integrately

1-Click connect BillionVerify with 1500+ apps, no code.

REST API

Call the verification API directly from any stack.

FAQ

Why verify before adding to Mailchimp?

Mailchimp charges by contacts and polices bounce rates. Verifying first keeps both your bill and your reputation in check.

Does this work for other event tools?

Yes. Swap the Zoom trigger for your webinar or events platform; the verification step is unchanged.

Can I tag attendees by verification status?

Yes. Pass the status into a Mailchimp merge field or tag to segment confidently later.

Add verification to your workflow

Create a free account, grab your API key, and stop bounces before they happen.

Get started free