Sample CSV File

When submitting data files for email verification through the LastBounce API, it's important to format your files correctly. The API focuses primarily on the email column for processing, regardless of other columns present in your file. This guide will walk you through two common file formats: with and without headers.

File Format Options:

1. With Header:

   If your data file includes a header, the email column header must be labeled as "Email." This header helps the API identify the correct column for processing. Below is a sample of how your file might look:

    

   Email Virgilio.so@demandscience.com Virgilio.so@yahoo.com Virgilio.so@gmail.com

2. Without Header:

   If your file does not contain a header, ensure that the emails are listed sequentially. The API will process each line as an individual email address. Here's an example:

    

   Virgilio.so@demandscience.com Virgilio.so@yahoo.com Virgilio.so@gmail.com

Tips for Preparing Your Data File:

• Other Columns: Even if your file contains multiple columns with additional data, the API will only process the email column. Make sure this column is formatted correctly, as illustrated above.

• Clean Your Data: Before uploading, remove any empty rows, extraneous spaces, or other anomalies to ensure smooth processing.

• Check the Email Format: Ensure that the email addresses in your file adhere to the standard format (i.e., localpart@domain.com) to avoid unnecessary errors during processing.