How To Verify Email Addresses In Google Sheets

• Manual verification is time-consuming and prone to errors.
• Using multiple tools can be frustrating, costly, and inefficient.

1. In your Google Sheet, navigate to Extensions → Add-ons → Get add-ons.
2. Search for Clearout for Sheets in the Google Workspace Marketplace and click Install.
3. Grant the required permissions when prompted.
4. Once installed, go to Extensions → Clearout for Sheets → Launch. The Clearout sidebar will open on the right side of your workspace.

1. Open the Email Verifier tab inside the sidebar.
2. Click on the API Token link inside the sidebar to open your Clearout Dashboard.
3. In your Clearout Dashboard, navigate to Developer → API, copy your API key, and paste it into the API Token box in the Google Sheets sidebar.
4. Click Save. Your token will be remembered for future sessions.

1. Ensure your spreadsheet has a distinct header row (e.g., Email or Email Address).
2. The add-on automatically detects your email column. Verify that the correct column containing your target email list is selected in the sidebar mapping dropdown.

• Smart Reverify: Choose specific conditions for re-processing (e.g., re-verify only rows marked as Unknown or Failed from previous runs).
• Performance Limits (Timeout): Set API timeout limits between 5 and 30 seconds.
• Append Columns: Select which data fields write back to your sheet (e.g., Verification Status, Safe To Send, Reason, Bounce Type, Disposable, Free Provider, Role Account, MX Record Details, and AI Verdict).
• Remove Duplicates & Empty Rows: Enable these toggles so duplicate emails or blank rows are skipped automatically, saving your verification credits.

• Click the “Verify Emails” button at the bottom of the sidebar.
• Clearout processes your list in real-time. New columns will instantly appear in your Google Sheet, populating row by row as each check finishes.
• You can stop or cancel the verification process at any point if needed.

• .com
• .org
• .net
• .edu
• .gov
• .info

• Open the Google Sheet where you want to perform email address validation.
• Choose the cell or range of cells where you want to validate email addresses. You can click on a single cell or click and drag to select a range.
• Click on the "Data" menu at the top of the Google Sheets window, and then select "Data validation" from the dropdown menu.
• In the "Data validation" dialog box that appears, you will see various options:
  • Cell Range: The selected cell or range will be displayed here.
  • Criteria: Choose "Custom formula is" from the dropdown menu.
  • Value: In the field next to "Custom formula is," enter the ISEMAIL formula(=ISEMAIL(D3)).
• Validate emails in Google Sheets
• Click the "Save" button to save your data validation settings. And you should be able to see which emails are in invalid format.

• First, make a duplicate of the column you want to convert into a people chip.
• Select the entire duplicated column, go to “Insert”, click on “Smart Chips” and choose“Convert to People chip”.
• This will cause some cells to have a circled background, which will display more information when you hover over them.
• To compare the results, type the formula =NOT(A2=B2) into the cell in the third column. If the result of this formula is False, it means no valid people chips were found for that email. In this case, both columns should remain the same, making it easy to filter out invalid results.
• To filter the columns, select all the columns you want to filter and go to the "Data" tab. Click on "Create a filter". Now you should be able to sort the data easily and remove invalid results.

• Select the cell or the range of cells that you want to validate.
• Click on the "Data" menu at the top of the Google Sheets window, and then select "Data validation" from the dropdown menu.
• In the "Data validation" dialog box that appears, you will see various options:
  • Cell Range: The selected cell or range will be displayed here.
  • Criteria: Choose "Custom formula is" from the dropdown menu.
  • Value: In the field next to "Custom formula is," enter the custom regex formula for email validation.
• Click the "Save" button to save your data validation settings.
• Now, if someone enters data in the selected cell or range, the custom regex formula will check if it's a valid email address based on the regex pattern. If it's valid, the input will be accepted. If it's not valid, the custom error message (if configured) will be displayed..

• Saves time by automating the validation process.
• Eliminates manual work—no need to switch between multiple tools or deal with complex imports/exports
• Keeps your database clean and accurate by removing duplicates and detecting gibberish emails.
• Identifies risky emails, including spam traps, disposable addresses, and catch-all domains.
• Provides AI-powered insights with intelligent recommendations beyond just valid/invalid status.
• Improves email deliverability with advanced validation features like greylisting verification and guaranteed deliverables.
• Boosts outreach success by ensuring your emails reach real recipients.
• Strengthens sender reputation—verified emails lead to better inbox placement, higher engagement, and a stronger ROI.

To display a custom error message when invalid email addresses are entered:​

1. Select the range where you want to apply data validation.​
2. Go to Data > Data validation.​
3. Set the criteria to Custom formula and enter your validation formula (e.g., =ISEMAIL(A1)).​
4. Check the box for Show validation help text and enter your custom error message.​
5. Click Save.​ Now, if an invalid email is entered, your custom message will appear. ​

The ISEMAIL function checks if an email address is correctly formatted but doesn't verify:​

• If the domain exists.​
• If the email address is active or receives emails.​ For deeper validation, consider using specialized email verification tools.​