How to verify a list of email addresses

In this guide, you’ll learn how to upload your email lists for bulk verification.

Available for: all premium plans.

Step 1: Open Bulk Email Verification

Step 2: Add emails for verification

Step 3: Add to list or export results

By using Bulk Email Verification, you can run verification checks on your entire email list in bulk and remove any invalid addresses before starting a campaign.

How to verify and clean email lists in bulk

Step 1: Open Bulk Email Verification 

To access Bulk Email Verification, select it from the Verify emails menu on the navigation bar in your account.

Step 2: Add emails for verification

Next, select the option for adding your emails. You will find two options:

1. Add from file

To upload a file with the emails for verification, select the Choose file option.

Bulk verification capacity:

Bulk Email Verification tool supports CSV, XLS, XLSX and TXT file formats and can process up to 100,000 lines per search. The file size should not exceed 10 MB.


Next, when you see the file preview, click on the column that contains the emails you want to verify.

If the first line of the column contains headings, check the box that says Use first row for headers.

Finally, click the Upload file button to start processing the file.

Once the file has been processed, you will see the total number of emails found in the file. To start the verification process, click the Verify button.

Verification may take some time depending on the number of emails in the file. You can check the verification queue in the Progress column.

2. Add emails manually

To verify multiple emails manually, use the Add manually option. Enter the emails to the Email addresses field. Separate the emails with commas, semicolons, spaces, or line breaks. Then click Verify emails.

Note: If we find emails that don’t match the correct email format, we’ll skip them during verification. Click Add valid emails to continue.

Step 3: Add to list or export verification results

Once verification is complete, you’ll see the number of emails for each verification status in the Status column.

To add the verified emails to a list, click the Add to list button and choose the desired list.

To download the file with emails and their verification results, click on the Export icon.

In the export settings, you have the option to choose which emails with specific statuses you want to export. You can also select the format, such as CSV, XLSX, or Google Sheets.

Please ensure that you either add the verification results to a list or export them within 30 days from the upload. After this period, the results will be cleared from the Bulk verification page.


If you have any questions or need assistance, please contact our Customer Care team. We’re always happy to help!

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