Email Verifier app allows you to upload any file with custom fields on each column. Our system automatically verifies just the email address column and leaves the other columns intact.
Each rows data is carried along with the data cleaning process so you will never have to worry about that.
Simply upload the mailing list and if there are a lot of custom fields, our system will automatically prompt you on which fields you would like to keep and automatically get rid of the others. This rarely happens.
We almost always support a lot of column data to be kept intact while verifying. If you have a specific request to keep a lot more fields that our system is allowing, just get in touch with us and we will organize it for you.