ByteMail will add Zip+4 and/or Carrier Route codes into your mailing list. This process also corrects addresses, standardizing them to USPS standards. Not only will this make your list more accurate, but it can speed up delivery by allowing you to use barcodes and make it possible to pre-sort to the lowest postal rates.

Simply send us your mailing list (ByteMail can convert most list formats) and we will send it back to you, standardized. We can take files via e-mail, disk, CD, 9-track tape and others. Ask if you need help.

ByteMail will return both your addresses with postal codes and a CASS certificate to use with your mailings.