MailPrep Pro -- USPS Presort Engine

Upload Mailing Lists

Add one or more files -- each will be mapped and standardized then combined for presort

Job Type

Address Mailing List

Upload addresses - CASS - NCOA - Dedup - Presort

EDDM (Every Door Direct Mail)

ZIP + carrier route saturation - no address list - skips CASS & dedup

What are you building?

📋

Full mailing

CASS · optional NCOA/Dedupe · Presort · Mail.dat

🧹

Clean my list

CASS + Dedupe · stops before presort (no Mail.dat)

✅

CASS only

Standardize + DPV · CASS reports · stops after CASS

🛰️

DSF2 saturation

Anchor DSF2 (incl. CASS) · Presort for HD/HD+

🏘️

EDDM mailing

ZIP + carrier route saturation -- no address list

🛠️

Custom

Pick your own steps below

Drop files here or click to browse

Add multiple files -- each is mapped separately then combined into one presort run

CSV XLSX XLS TXT TSV DBF DOCX PDF RTF

Process through DSF2 (saturation / high-density / walk-sequence)

                Runs your list through Anchor Computer's DSF2 — which includes CASS — to qualify HD / HD+ / walk-sequence rates, used instead of the in-house CASS pass.
              

Map Columns

Map each file's columns to standard USPS fields -- files are combined after mapping

File Preview

Pre-processing Options

Deduplicate Records

Remove duplicate delivery addresses via DedupIQ (fuzzy match) -- or exact-match fallback if unavailable

NCOALink Move Processing

Flag moved/undeliverable addresses using USPS NCOA database

Suppress Undeliverables

Automatically remove DPV=N records from the mailing

Job Configuration

Mail class · permit info · piece specs · presort options

Select Mail Class

First-Class Mail

Letters, flats, parcels -- forwarding & return service

from $0.484 presorted letter

Marketing Mail Letters

Standard advertising letters -- automation & carrier route

from $0.175 automation

Marketing Mail Flats

Catalogs, large envelopes, self-mailers

from $0.356 automation flat

Nonprofit Letters

Qualified nonprofit Marketing Mail -- letter-size pieces

from $0.110 automation letter

Nonprofit Flats

Qualified nonprofit Marketing Mail -- flat-size pieces

from $0.242 automation flat

Bound Printed Matter

Books, catalogs, binders -- presorted & carrier route

from $0.356 presorted flat

EDDM

Every Door Direct Mail -- no address list required

$0.234 flat rate / piece

Periodicals

Newspapers, magazines -- in-county & outside-county rates

from $0.149 in-county

Permit & Mailer Information

Permit Number ✱ USPS Permit Imprint or Business Reply #

Post Office of Mailing ✱

Mailer Name

Mailer Email

Mailing Date

Job / List Name

Entry & Drop-Ship -- destination entry can lower postage on qualifying trays

Entry / Drop-Ship DSCF / DDU reduce postage on trays entered at the destination facility

Post Office of Mailing ZIP → entry_zip Origin ZIP where the mail is entered (5 digits)

Carrier-route qualification is controlled by the Carrier Route Presort toggle in Engine Job Options below.

Piece Specifications -- used as default values for any record missing dimensions in your CSV

Piece Type

Pieces per Tray

Width (in) → engine: WIDTH

Height (in) → engine: HEIGHT

Thickness (in) → engine: THICKNESS

Weight (oz) → engine: WEIGHT

          These dimensions are sent to the engine as piece_defaults  --  they apply to every record where WIDTH / HEIGHT / THICKNESS / WEIGHT is absent or zero in the CSV.
          When auto-versioning is on, the engine also uses these as the fallback for any version not otherwise specified.
        

Engine Job Options

Presort this mailing

Run the Presort/Comingle/PrimeSort engine after CASS -- turn off to skip the Sort Engine step

Carrier Route Presort

Engine will sort to carrier route level when CRT field is present in your data -- maximum postage savings

5-Digit / AADC / 3-Digit Presort

Engine builds all applicable sort levels automatically based on your ZIP data and piece counts

Generate Postage Statement

Engine produces statement.txt -- PS Form ${MC[S?.mailClass||'fcm']?.form||'3600'} format -- included in output files

Generate Mail.dat Package

Engine produces .csm / .hdr / .pbc / .seg files for PostalOne! electronic documentation

Version Inventory

                Scanned from combined data · enter dimensions per version · sent to engine as piece_versions
              

Auto-Versioning Engine reads VERSION_ID from CSV. Dimensions below are per-version overrides -- blank inherits from CSV or piece defaults. Manual Versioning Only listed versions are used. Each record must have a matching VERSION_ID. Dimensions required per version.

USPS Promotions (optional)

Tactile / Sensory Sustainability Earned Value / Incentive Augmented Reality Informed Delivery Retail Diversification

          Applied per VERSION_ID when auto-versioning is enabled. Global promotions apply to all pieces.
        

Sort Mode

📬

Presort

Standard USPS presort -- Carrier Route · 5-Digit · AADC · 3-Digit

📦

Comingle

Skip presort -- classify all pieces directly into provider bin groups

⚡

PrimeSort

Full presort first, then extract AADC/Mixed/3-Digit for comingle

Processing Mode

🌐 Browser Pipeline

Steps run in your browser — you watch each phase live. Downloads happen directly from each service.

⚡ Server Pipeline

One click runs CASS→Dedup→Presort server-side. All outputs stored to blob — SAS links returned when done.

CASS Certification & Address Validation

TEC Mailing Verify & Confirm™ · DPV · ZIP+4 · Carrier Route · NCOALink

Verify & Confirm™

Customer ID

Configuration ID

Tenant ID

Client ID

Client Secret

NCOALink

Enter credentials above to use live CASS -- or run local pre-validation

Dedupe Suppress undeliverable

Ready 0%

No partial matches.

No undeliverable addresses.

No moves found.

Presort Engine

Carrier Route · 5-Digit · AADC · 3-Digit · Mixed ADC · IMb Barcode Generation

Initializing presort engine... 0%

Reports & Downloads

Postage statements · presorted output · container labels · CASS report · purge list

--

Total Pieces

--

You Saved

--

Trays / Sacks

--

Sort Quality

CASS & NCOA Address Validation

CASS Certification Report

DPV summary · address corrections · ZIP+4 match rate · Form 3553-B

NCOALink Move Report

Move-found records with old & new addresses · COA effective dates

Undeliverable / Purge List

All records removed from mailing · CASS/NCOA reason codes

Deduplication

Deduplication Output (Clean)

Kept records after dedup · unique delivery points · with DUP_GROUP field

Full Dedup Record Set

All input records with DUP_STATUS · DUP_GROUP · DUP_SUPIND for each record

Duplicate Records List

Only the suppressed duplicate records · which group each belongs to

Sorted Records Report (Flex Merge)

Fixed-width sorted records report grouped by dedup group · Flex Merge format

Output File Report (Flex Merge)

List-level output file summary · counts by list name · Flex Merge format

List Match Cross-Reference

List-by-list match cross-reference table · Flex Merge format

List Quality Report

Address parse rates · name match rates · quality metrics · Flex Merge format

Presort Reports

Presorted Mailing List (CSV)

Walk-sequence order · sort codes · tray IDs · IMb barcodes · ZIP+4

PS Form 3600 / 3602 / 3600-BPM

USPS Postage Statement — ready for mailer + acceptance unit signature

Mail Sort Listing

Piece-by-piece sort listing by tray · destination · level · rate · IMb

Qualification Report

Sort level qualification summary · piece counts · rate eligibility · DMM citations

Facing Slip Report

Piece-count-by-dest per tray — required for drop-ship & plant-verified drop

Tray / Sack Labels (PDF)

PS Form 3553-style container labels — 4″×6″ or 8.5″×11″ print-ready

Walk-Sequence Report

Full delivery-point sequence listing per carrier route — USPS LOT order

Job Summary Report

Full presort summary — rates · tray count · savings

Register of Mailings (PDF)

USPS Register of Mailings — entry PO · piece counts · postage by sequence

Electronic Documentation & Data

Mail.dat Package

CSM · HDR · PBC · SEG files — submit directly to USPS PostalOne!

Raw Results (JSON)

Complete engine output — all sort levels, rates, piece specs — for integrations