Email List Verification FAQ

Have a question about the list verification service? Check out some of our common questions below!

We support .txt, .csv (Recommended), .xls .xlsx, .zip (You can have multiple .csv,.txt files inside in the zip). 70mb max per file.

Yes, you can! We support up to 100 columns in csv files. Once your list is cleaned, those columns will remain intact for download

You can verify as many as you want up to your credit limit.

Once your list is verified, you will get a report that breaks down your list by different statuses such as: invalid, valid, suppressed, and parked sites. You will then have the option to download the cleaned list or the whole list including bad entries.

Our email list verification is a multi-step process. First, we do basic sytnax level checks to make sure the email is valid. Next, we check if the dns entries exist for site/mail server, then we check against our global suppression list for email addresses and domains. Finally, we do an SMTP level connection to the email address to see if it is valid or not.

Yes, we do! Please contact our sales team for more information.


Need more information or have a different question? Please contact us!