Make.com Email Marketing Lead Generation Data Hygiene Google Forms

Automate Email Verification & Contact List Building

Capture leads from Google Forms, verify their email addresses with MailerCheck, and automatically add valid contacts to your BigMailer list—all without manual work.

Get This Workflow → Make.com · Email Marketing · Free Template
Diagram showing automation flow from Google Forms to MailerCheck to BigMailer

What This Workflow Does

Every business collecting leads online faces a common problem: dirty data. Up to 20% of email addresses collected via forms can be invalid, mistyped, or from disposable services. Adding these to your marketing list hurts your sender reputation, increases bounce rates, and wastes your marketing budget on emails that never reach a real person.

This automated workflow solves that by acting as a quality gatekeeper for your contact list. It connects your Google Forms—used for lead magnets, event sign-ups, or contact requests—directly to MailerCheck for instant email verification. Only emails that pass verification are then created as new, clean contacts in your BigMailer account, ready for nurturing campaigns.

The process eliminates manual checking and data entry, ensuring your marketing team spends time engaging with real prospects, not cleaning spreadsheets. It turns a raw lead capture process into a reliable, scalable system for list growth.

How It Works

The automation runs silently in the background, triggered by each new form submission. Here’s the step-by-step process:

Step 1: Capture the Lead

A visitor fills out your Google Form, providing their name, email, and other details. The moment they hit "submit," the workflow is triggered. Make.com instantly receives the submission data, including the all-important email address.

Step 2: Verify the Email

The workflow sends the submitted email address to MailerCheck, a dedicated email verification service. MailerCheck performs a series of checks on the email's syntax, domain, and mailbox to determine if it's valid, risky, or invalid. It returns a clear status and risk score.

Step 3: Make a Decision

Based on MailerCheck's response, the workflow makes an automated decision. If the email status is "valid" and the risk is low, the process continues. If the email is marked as "invalid," "disposable," or "high-risk," the workflow can stop, log the entry, or send an alert—keeping your main list clean.

Pro tip: You can extend this workflow to send an automatic reply to users who provide an invalid email, asking them to correct it. This can recover up to 15% of otherwise lost leads.

Step 4: Create the Contact

For valid emails, the workflow takes all the form data (name, company, etc.) and uses it to create a new contact in your BigMailer account. The contact is instantly added to a designated list or tagged appropriately, making them immediately available for your email sequences, newsletters, or sales outreach.

Who This Is For

This automation is ideal for any business or marketer that relies on lead generation forms and email marketing. Specifically, it's perfect for:

  • Digital Marketers & Agencies: Managing multiple client lead funnels who need to ensure list quality and demonstrate ROI from clean data.
  • Course Creators & Coaches: Using Google Forms for webinar registrations or freebie downloads, wanting to build a high-quality email list for launching offers.
  • Small Business Owners: Wearing multiple hats who don't have time to manually vet every email sign-up but understand the cost of spam traps and bounces.
  • Event Organizers: Collecting registrations and needing a verified attendee list for communication before and after the event.

What You'll Need

  1. A Make.com account (free tier available) to build and run the automation.
  2. A Google Forms setup that is actively collecting lead information.
  3. A MailerCheck account with API access to verify emails (they offer pay-as-you-go credits).
  4. A BigMailer account (or a similar email marketing platform) where you want to store your verified contacts.
  5. The API keys or connection credentials for MailerCheck and BigMailer ready to input into Make.com.

Quick Setup Guide

You can have this workflow live in under 30 minutes. Follow these steps after clicking "Get This Workflow":

  1. Clone the Template: In Make.com, use the provided link to create a copy of the template in your own account.
  2. Connect Your Apps: Authorize the connections to your specific Google account (where the form lives), your MailerCheck account, and your BigMailer account.
  3. Map the Data: Point the Google Forms module to your specific form. Then, map the form fields (like 'Email', 'First Name') to the corresponding fields in the MailerCheck and BigMailer modules.
  4. Set Your Filter: Configure the router or filter module to only proceed to BigMailer if MailerCheck returns a "valid" status. You can adjust the risk score threshold based on your preference.
  5. Test & Activate: Turn on the scenario and submit a test entry to your Google Form. Check that a valid test email becomes a contact in BigMailer and an invalid one is handled appropriately.

Key Benefits

Improve Email Deliverability by up to 40%. By ensuring only valid addresses enter your list, you dramatically lower bounce rates. Internet Service Providers (ISPs) see you as a trustworthy sender, which increases the chances your emails land in the primary inbox, not spam.

Save 5+ Hours per Month on Manual List Cleaning. Eliminate the tedious task of exporting lists, running them through bulk verification tools, and manually importing the clean data back. The automation handles this in seconds, freeing your team for higher-value work.

Increase Marketing ROI with Higher Engagement. Clean lists mean your open and click rates reflect engagement with real people. This provides accurate data for optimizing campaigns and ensures your marketing spend is effective, not wasted on non-existent addresses.

Scale Lead Capture Confidently. Whether you get 10 or 1,000 form submissions a day, the system works consistently. You can run larger ads or promotions knowing your backend will automatically qualify and onboard leads without breaking or requiring extra manpower.

Enhance Data Integrity from the Start. This workflow embeds data quality at the point of entry. It prevents bad data from ever polluting your CRM or marketing platform, leading to more reliable segmentation, reporting, and customer insights.

Frequently Asked Questions

Common questions about email verification and marketing automation

Email verification is crucial because it removes invalid, fake, or risky addresses from your list before they cause damage. This directly improves your sender reputation with email providers, reduces bounce rates, and increases overall deliverability.

Clean lists mean your campaigns reach real people, leading to higher open rates, engagement, and a better return on your marketing investment. It's a foundational practice for anyone serious about email marketing performance.

Connecting Google Forms to an email marketing tool like BigMailer automates lead capture and list building. Every form submission instantly becomes a potential contact, eliminating manual data entry and the associated errors and delays.

This ensures timely follow-up, which is critical for conversion. It allows you to nurture leads from the moment they express interest, significantly speeding up your sales funnel and improving the lead-to-customer conversion rate.

MailerCheck uses a multi-layered process to determine email validity. It checks the email's basic syntax, verifies that the domain exists and has a valid mail server (MX records), and can even check if the specific mailbox is deliverable.

It also screens for disposable email addresses and known spam traps. The service returns a detailed status and risk score, allowing you to set your own thresholds for what constitutes a "good" lead for your business.

Automating lead list hygiene translates directly to saved time, money, and improved sales effectiveness. It prevents your team from wasting effort on dead-end leads and protects your email marketing budget from being spent on undeliverable addresses.

More importantly, it ensures your sales and marketing teams focus only on qualified, reachable prospects. This increases conversion rates, improves campaign performance metrics, and provides a clearer picture of your true marketing ROI.

Absolutely. The core principle—verifying an email and adding it to a CRM or marketing platform—works with any form tool. Make.com can connect to hundreds of apps including Typeform, Jotform, HubSpot Forms, and Webflow.

You can easily adapt this workflow template to your preferred form builder. Simply replace the Google Forms module with your form app's module, while keeping the MailerCheck verification and BigMailer integration steps intact.

You should have a defined process for handling failed verifications. A common and effective strategy is to route them to a separate list or database for manual review. Alternatively, you can trigger an automated follow-up email asking the user to confirm or correct their address.

This approach is valuable because it can recover leads lost to simple typos (like "gmial.com") while still protecting your primary list from truly invalid data. The automation can be extended to handle these different paths automatically.

Clean data is the non-negotiable foundation of effective marketing automation. It ensures that segmentation is accurate, personalization is relevant, and automated customer journeys trigger correctly for the right people.

With verified emails, you avoid sending welcome sequences or nurturing campaigns to invalid addresses, which wastes resources and skews your engagement analytics. Clean lists lead to more reliable reporting, better audience insights, and ultimately, more predictable and scalable growth.

Yes, absolutely. GrowwStacks specializes in building custom automation solutions for businesses of all sizes. While this template is a great starting point, we can design a workflow that connects your specific form tools, uses your preferred verification service, and integrates seamlessly with your CRM or email marketing platform.

Our team will handle the entire technical build, testing, and documentation, providing you with a tailored system that fits your exact lead capture, verification, and nurturing process. We ensure it aligns with your business goals and scales with your growth.

  • Integration with your existing tech stack (e.g., Salesforce, HubSpot, ActiveCampaign).
  • Custom logic for handling different verification outcomes.
  • Ongoing support and optimization as your needs evolve.

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