In the world of digital marketing and sales, the difference between a successful campaign and one that fails is often in the quality of the data. Having a large contact list is not enough: those emails must be real, valid and updated. Otherwise, the investment in time and money ends up in bounces, blocks, and a deterioration of your domain’s reputation.
One of the most powerful and often underexploited sources of leads is Google Maps. The information displayed by Google My Business profiles includes public business data: name, address, phone, website, and even reviews. All of this can be used to build quality databases that feed your CRM, your outreach campaigns or your sales team.
In this article, we’ll show you how to get emails from Google Maps automatically with n8n, how to avoid the most common mistakes when working with extracted data, and why it’s essential to verify emails before using them. In addition, we will explain a free workflow that we have published in the n8n community and that you can now download to get it up and running in minutes. We also leave you a video where it is explained step by step how it works and how the workflow is configured.
📌 Key points of the article
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How to get emails from Google Maps with an n8n workflow.
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Risks of using unverified emails: bounces, blocks, and spam traps.
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The step-by-step flow: search → Google Sheets → enrichment → validation.
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Benefits of automation: time savings and better integration with CRM.
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Importance of verifying emails to protect reputation and ROI.
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Download the workflow for free in the n8n community and try it out.
Google Maps as a source of leads
When a user searches for a restaurant, dentist, or marketing agency on Google, the search engine displays Google Maps results with business listings. These files are managed by the companies themselves and, in many cases, include contact details such as corporate websites or telephone numbers.
This makes Google Maps a living map of business opportunities:
- It is global, as it covers business in almost any country.
- It is dynamic, because the data is constantly updated.
- It is verifiable, since it is public information provided by the companies themselves.
For a marketer, a CRM manager, or a lead generation specialist, this means that a real business pipeline can be fed with up-to-date and segmented information.
The challenge of data quality
Getting contacts is simple; Getting contacts that work is another story. Many marketers make the mistake of collecting massive lists and cold launching them in email campaigns. The consequences are often severe:
- Invalid emails: addresses that are misspelled, non-existent, or no longer in use.
- Spam traps: trap addresses designed by email providers to detect dubious sending practices.
- Crashes and bounces: When the error rate exceeds certain limits, providers (such as Gmail or Outlook) start blocking or diverting sends to the spam folder.
- Damaged reputation: If your domain is marked as a low-quality sender, recovering it can be very expensive and take months.
That’s why the key is not only to get emails from Google Maps, but to make sure that each contact is valid and usable before incorporating it into your CRM or email marketing tool.
n8n’s workflow: getting emails from Google Maps automatically
To solve this challenge we have created a workflow in n8n to get emails from Google Maps that you can download and use for free from the official n8n gallery. We’ve also explained it in detail in this video:
What does the workflow do?
- Search for businesses on Google Maps → the flow launches a query in the Google Places API to get results segmented according to your parameters (for example: “dental clinics in Barcelona”).
- Save data to Google Sheets → results are automatically written to a sheet with columns such as Name, Address, Web, Phone, or Rating.
- Enrich with an LLM → the system visits each business’s website and generates a short summary of the company in addition to detecting email addresses.
- Verify emails with EmailVerify → each identified email goes through the validation node to make sure it is real, valid and secure before adding it to the list.
The result: a clean spreadsheet, with up-to-date business information and emails ready to use in outreach campaigns.
Benefits for marketing and sales
The use of this workflow provides clear advantages over manual search or the purchase of third-party databases:
- Full automation: The system works on its own, without the need to copy and paste data one by one.
- Time saving: In minutes you can generate hundreds of contacts that would manually take hours or days to collect.
- Guaranteed quality: thanks to email verification, you reduce the risk of bounces and blocks.
- Scalability: You can adjust search parameters and expand your lead base in any industry or country.
- Out-of-the-box integration: The data is already in Google Sheets and can be easily synced with your CRM or email marketing tool.
The importance of verifying emails
Imagine that out of the 1,000 contacts obtained from Google Maps, 150 are invalid. If you launch a campaign without filtering them, you’ll have a 15% bounce rate. That’s more than enough for Gmail, Outlook, and other providers to start suspicious and flag your mailings as untrustworthy.
In addition to invalid emails, there is the risk of spam traps. These addresses do not correspond to real users: they are used to identify senders who do not clean their lists. If you fall into one of them, your emails will go straight to spam.
With the EmailCheck node in n8n, each address undergoes a real-time technical check:
- Syntax validation.
- MX domain verification.
- SMTP Server Check.
- Detection of disposable or suspicious emails.
So, when an email appears as valid on your sheet, you can confidently use it in your campaigns.
Legal and Ethical Limitations on Data Use
It’s important to note that Google Maps data is public, but that doesn’t mean it can be used carelessly. There are several considerations you should take into account:
- GDPR and data protection: In Europe, the use of personal emails without consent can be illegal. It is advisable to focus on corporate emails that appear on company websites.
- Quality vs quantity: there’s no point in collecting thousands of contacts if they’re not segmented or unrelated to your product.
- Respect for the end user: avoid abusive practices such as mass sending without personalization or without the option to unsubscribe.
The workflow is designed to facilitate lead generation, but the responsible use of that data is the responsibility of each user.
How to use the workflow
Discharge of the flow
The workflow is available in the official n8n community: 👉 Download workflow in n8n.io
Prerequisites
- N8N installed (on-premises, server-side or in the cloud).
- Credentials configured for:
- Google Sheets.
- Perplexity (Bearer Token).
- VerifyEmails (auth token).
Installing the EmailVerify Node
At the moment, email validation is done through a community node. To install it:
- Go to Settings → Community Nodes on your n8n instance.
- Search
@verificaremails/n8n-nodes-verificaremails. - Install it and add your EmailVerify credentials.
This node will soon become part of the n8n core, which will further simplify the installation process.
Flow execution
- Define your search parameters (keyword, city, number of results pages).
- Run the workflow:
- Deals found in your Google Sheet will be saved.
- They will be enriched with email + description.
- Email addresses will be validated.
- Verify that the correct tab on your sheet is selected at the end write node.
Conclusion
Getting emails from Google Maps is a powerful strategy to expand your contact base and nurture your marketing campaigns. However, doing it manually is inefficient and risky if the quality of each email is not validated.
The workflow we have created with n8n allows you to:
- Automate lead generation from Google Maps.
- Enrich the data with additional information.
- Check each email before using it, avoiding blocks and bounces.
If you are a developer, CRM manager or marketing and lead generation specialist, this is a tool that can transform the way you work.
And if you want to go a step further, in VerificarEmails.com you will find a whole ecosystem of data validation: emails, telephone numbers, names and postal addresses. Because in marketing, the difference is not made by the quantity of leads, but by the quality.
