Clay (Free): to clean and validate emails and enrich with person and company data
Before we begin
Want to protect your data quality before you ever hit send? Thought so.
This Claybook helps you verify email addresses, validate website domains, enrich person and company data, and check for tech stack signals—all from a single email input. By adding a master domain blacklist, you can also automatically filter out bad-fit, risky, or irrelevant domains, keeping your lists clean and compliant.
No more wasting credits or risking deliverability on the wrong leads.
How it works:
- Copy the template to your Clay workspace
- (Optional) Build a custom master domain blacklist in table two
- Customize which tech stack signals to track with HG Insights
- Add email addresses to the first column
- Clay will automatically verify emails, validate domains, enrich company and person data, check for tech stack, and detect job changes
Steps
Copy this template
First, copy this template in Clay.
If you’re already a user, you’ll be directed to your workspace. If not, you’ll be prompted to create a free Clay account.
The interactive demos on the right will walk you through each step of this Claybook.
Step 2:
Create a master domain blacklist (optional)
Next, create a master domain blacklist in table two of this workbook.
Why?
Using a custom blacklist ensures irrelevant, invalid, or high-risk domains are automatically excluded, protecting data quality and deliverability. It also helps you tailor outreach to only your target audiences, reducing wasted effort and compliance risks.
Step 3:
Customize tech stack signals
Next, customize the HG Insights column (natively integrated with Clay) to specify which tools you’d like to check for usage by the company associated with the email you added. Note: the HG Insights column is set to “manual” which means you’ll have to manually run it after the rest of the table runs.
Step 4:
Add emails to the first column
Finally, simply add an email address to the first column, and the table will automatically: verify the email address, validate the website domain status, enrich company and person data, identify the company’s region, industry, and employee count, check for specified technology usage, and detect any recent job changes.
Copy the template
Automate email cleaning and hygiene in Clay.
Simply copy this template, follow the steps above, and let Clay work its magic.
Need help?
If you have any issue, you can ask for help in Slack or schedule time with a Clay expert.
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