National Mail Delivery Reliability Study
VaultInbox.cloud is conducting an independent research study on mail delivery reliability and dispute resolution challenges. This survey is not affiliated with the United States Postal Service (USPS).
Privacy + scope
Please do not submit addresses, tracking numbers, names of individuals, or other sensitive personal information. Responses are analyzed in aggregate to understand failure modes and willingness-to-pay for tamper-evident digital proof.
Each response is tagged with a unique Submission ID (UUID) for research integrity.
Submission ID
Your Submission ID is generated locally in your browser. Keep it for your records if desired.
Why this matters
Proof-required communications often fail due to physical delivery friction and disputed receipt. This survey helps quantify reliability gaps and validate demand for certified digital delivery proof.