You can verify multiple lists at once within the same financial transaction. Maximum of 20 lists every 24 hours.
VERY IMPORTANT! All files must be uploaded before the validation process is started or they will not be included in the same financial transaction.
Upload all of your lists
Select Validate on any one of the files from the drop-down menu in Action column
You will be presented with a price for the total amount of email addresses in all of your lists