Email List Validation & Cleaning

Email list validation & cleaning maximizes the efficiency of your email marketing campaigns and protects your email sender reputation.

The Byteplant Email List Validation process includes all checks done in the online API


During the entire process, we never send any email to the recipient address.

How Does It Work?

1. Upload your email list as plain text (.txt) or as comma-separated values (.csv) file (one email address per line, use Email as column header and comma (',') as column separator). CRM systems, databases and spreadsheet software like Microsoft Excel are capable to export data to a .csv file, see below for detailed instructions.

2. As soon as the validation process is finished, we send you an email and you can download the results. You may choose to download valid and invalid addresses as separate files. To match a result to a record in your database, you can merge the results with your input data when downloading the results. For each email address, we provide a detailed email validation status that shows you exactly the reasons why an email address is valid or not, so that you can fully understand the results and take appropriate action.

Start your free trial now - the first 100 email address validations are free!

Validate & Clean Your Email List

Validating & cleaning email lists is quick & easy. If you already have an account, please login first. Otherwise, you need to enter your name and your email address.

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Your First Name (*)

Your Last Name (*)

Your Work Email Address (*)

An email with a personalized download link for your validation results will be sent to this address. Please enter your work email - we do not accept free email addresses for the trial registration.

Validation Task Information

Task Name (*)

Choose a unique name that allows you to identify this task.

Validation Level (*)

Email List File (*)

You can upload a text or CSV file (one email address per line, with Email as column header and comma (',') as column separator).
Excel files must be exported to CSV first:

  • Open the file in Excel.
  • Click Menu | Save As (Other Formats).
  • Enter a name for the file and choose "Unicode Text (*.txt)".
  • Click Save.
The free trial is limited to 100 email addresses.

Keep Your Email List Clean - Protect Your Email Sender Reputation

A clean mailing list is essential to your email marketing success. Your email sender reputation - the number of bounces, spam complaints, and spam trap hits caused by your mailings - is responsible in 83% of all cases where your emails are not delivered.

Email List Cleaning improves your email sender reputation and increases your inbox delivery rate by removing bad email addresses. Even top brands have to worry about their email sender reputation - don't wait until you have been blacklisted!