TL;DR
- A print approval shows the piece you approved, not that it was mailed. A mailing record, processing event and delivery record answer different questions.
- USPS Informed Visibility includes assumed handling events and logical events based on business rules. A provider's “delivered” label needs a definition before you treat it as a physical delivery scan.
- Certificate of Mailing, Certified Mail and Return Receipt provide different evidence where eligible and purchased. Do not assume an ordinary postcard campaign includes signatures or individual delivery confirmation.
- Postal evidence does not establish ownership, reading or seller interest. Keep mailing records separate from responses, buying opportunities, contracts and closed purchases.
Ask what the report observed
A mailing provider may report “printed,” “sent,” “in transit” or “delivered.” Those labels are useful only if you know the underlying record, the unit being counted and whether an event was observed or inferred.
For commercial barcoded letters and flats, USPS Informed Visibility Mail Tracking & Reporting supplies mailstream information. USPS says it uses nesting associations to create assumed handling events and offers logical handling events, including logical delivery events, based on business rules. That is not a promise of a physical doorstep scan for every investor postcard.
Start with a sample report before buying. Ask the provider to explain one actual row, with private recipient details removed. A dashboard label alone cannot tell you whether a mailpiece was scanned, a containing tray was processed, or a rule generated an event.
Use an evidence ladder, not one delivery percentage
This ladder is a reading aid, not a required sequence of postal services. A campaign may not produce every kind of record.
| Evidence | What it can support | What it does not establish |
|---|---|---|
| Approved print proof | The content and layout approved for production | Printing, mailing or delivery |
| Production record | The quantity the provider reports producing | Postal acceptance or recipient receipt |
| Mailing or acceptance documentation | The mailing event, date and quantity covered by that particular document | Delivery to every intended recipient |
| Physical processing event | A recorded scan for the specified piece or mail aggregate | That the property owner received or read the offer |
| Assumed handling event | An inference using the mail's nesting association | A new physical scan of every contained piece |
| Logical delivery event | An event generated under business rules | A signature or direct observation that an owner received the piece |
| Delivery, attempt or signature record from an eligible extra service | The delivery-related event or signature actually recorded by that service | Current ownership, reading, agreement or a purchase |
| Identified seller response | Contact recorded under your response definition | A suitable property, accepted offer or closing |
| Verified closed purchase | A completed transaction supported by its own records | That postal delivery alone caused the purchase or made it profitable |
The distinctions about assumed and logical events come from the USPS overview. The production and seller-outcome rows are a proposed recordkeeping framework, not additional USPS tracking features.
Know what extra-service proof means
USPS describes three different services:
- Certificate of Mailing: an official record showing the date an item was presented to USPS for mailing. It is mailing evidence, not delivery evidence.
- Certified Mail: evidence that the item was sent and information showing delivery or a delivery attempt. Those two outcomes must not be collapsed into “the owner received it.”
- Return Receipt: an electronic or hardcopy delivery record showing the recipient's signature, when combined with the applicable eligible service.
Eligibility and purchase requirements matter. USPS's comparison table lists Certified Mail for First-Class Mail and Priority Mail; do not assume it accompanies a Marketing Mail postcard campaign. Confirm the exact service and records before paying for it. These descriptions do not establish whether a mailing satisfies any legal-notice requirement.
Even a signature is not a title search or proof that someone read the message. Keep the event, signer's recorded identity where applicable, and your ownership research as separate evidence. Do not reinterpret an attempted delivery as a completed delivery because the report combines them under one heading.
Read a “delivered” row without overclaiming
Invented illustration, not a USPS export, Homebase screen or campaign result: a provider's report shows the following simplified row.
| Field | Invented value |
|---|---|
| Provider status | Delivered |
| Underlying event type | Logical delivery event |
| Event date | November 6 |
| Report updated | November 7 |
| Signature record | Not supplied |
The defensible summary is: “The provider reports a logical delivery event dated November 6; this row supplies no signature record.” It is not: “The owner signed for the postcard on November 6.” The report-update date is also not automatically the delivery date.
Ask what rule produced the event and what postal records it uses. Ask whether the row describes one piece or summarizes other mail objects. If the provider cannot explain the mapping, retain its original label but mark its meaning unresolved. Do not promote the label into stronger proof.
Ask these questions about the full report
Before relying on a delivery percentage, request the definitions behind it:
- Which population is counted? Ordered pieces, printed pieces, accepted pieces, barcoded pieces or pieces with an event? Ask what happens to canceled, suppressed or rejected pieces.
- What event qualifies? Physical, assumed, logical, attempted delivery or a completed extra-service record? Are several event types combined?
- What is the unit? Individual piece, tray, bundle, container or campaign summary? How is an aggregate event associated with the pieces?
- Which time is displayed? Event time, time received from USPS, provider update time or an estimate? Ask for the time zone and reporting cutoff.
- What is missing? How are pieces without events, delayed data, returns and corrected records shown? Absence of a reported event is not, by itself, proof of nondelivery.
- Can you retain the evidence? Ask which underlying records and definitions are supplied, how long they remain available and whom to contact about a discrepancy.
Use the answers to reconcile a particular mailing, not to accuse a provider on the basis of an unfamiliar status label. Keep the quote, approved proof, final mailed quantity, available mailing documentation and report export together. Record gaps as gaps.
Postal progress is not seller response
A processing report helps investigate mailing operations. Seller-contact records answer a different question: who responded, when and with what information connecting the response to the campaign. Neither a logical delivery event nor a physical scan can supply that missing contact evidence.
The response-rate guide covers response definitions and denominators. Keep anonymous visits separate from identified contacts and retain unknown campaign matches rather than assigning them to the latest mailing. Do not divide a response count by a provider's ambiguously labeled “delivered” count and present it as equivalent to responses per actual mailed piece.
For Homebase's role, read the Homebase Method. This guide does not claim that Homebase exposes Informed Visibility data, offers Certified Mail, or supplies the invented report above. If you are still choosing where to buy, start a neighborhood analysis. The first neighborhood analysis is free; mailing is paid.
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