Delivery Sequence File (DSF2)
Here is your ultimate address cleansing and postal cost savings process. Every address on your file is matched and corrected to the USPS master database of every deliverable address in the United States.
Process:
DSF2 is a premium quality address verification and correction system. DSF2 uses the new Delivery Point Validation (DPV) to provide enhanced address accuracy at the delivery-point level. All components of your address record are validated, including the exact unit number (Address Standardization, or CASS processing, only validates that unit numbers fall within allowable ranges). DPV will enable mailers to determine whether an address may be undeliverable.
DSF2 will classify addresses with the following significant attributes:
- Commercial Mail Receiving Agency (CMRA)
- Business or Residence
- Vacant
- Delivery Method (e.g. door slot, curbside delivery)
Deliverable:
New address information is placed in new address fields that we add to your record. Your original address data is never changed. A summary report is provided to describe your results. A record layout defines field positioning and content.



