Fax Confirmation Receipts: What They Prove, How to Save Them | SecurelyFax
A fax confirmation receipt is the record produced by the sending system once the carrier reports the fax was accepted by the receiving line. It typically shows the destination number, the page count, the date and time, the result (delivered or failed), and a transmission identifier. Save every one — it's the proof people rely on for tax, legal, medical, insurance, and benefits paperwork.
What the receipt actually proves
It proves the carrier successfully transmitted the fax to a receiving machine on the other end of the dialed number. That's a higher bar than email — fax confirmation reflects a real call connection, the page count negotiated between machines, and the receiving machine acknowledging the pages. For most purposes (mortgage underwriters checking that a 4506-T arrived, an attorney showing a notice was sent on time, a patient confirming records went to the right office), that's the proof people need.
What the receipt does NOT prove
It does not prove that the recipient read the fax, or that the right person at the recipient organization picked it up off the machine. It does not prove the content was clear or that all pages were legible. For the highest-stakes sends (sworn court filings, contracts under deadline), check that the recipient also follows up — a phone call or email confirming receipt is the human acknowledgment the receipt itself can't deliver.
When to save the receipt
Always. Even for low-stakes sends. The cost of saving it is one PDF; the cost of not saving it is having to explain weeks later why you can't prove the fax went through. Common practice is to save the receipt with the document being sent — in the matter folder, the patient file, the loan application, the audit binder.
How to save and use receipts from SecurelyFax
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Every send produces a receipt automaticallySecurelyFax records every send in your account history with the destination number, page count, status, and timestamp.
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Open the fax in your outboxThe fax detail page shows the full receipt with the carrier's transmission identifier.
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Download or shareUse the inline PDF preview to grab a copy, or send a 5-minute signed link via the share button.
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Export for the fileThe export tool produces a ZIP of every fax PDF and a CSV index for the date range you choose. Useful for end-of-year reconciliation or e-discovery requests.
Receipts are retained per your account's retention policy. The default is 30 days for free-tier inbound; paid plans extend that. For HIPAA-eligible workflows, the HIPAA tier with a signed BAA extends retention further and adds audit logging that records who downloaded each receipt.
What to do when a fax fails
If the receipt says FAILED, the most common causes are: a busy or no-answer line at the recipient, a misdialed number, a page count too large for the recipient's machine, or a recipient line that's actually voice (not fax). Re-send after a few minutes and check the destination number. See /guides/why-faxes-fail/ for a deeper troubleshooting list.
Frequently asked questions
Is a fax confirmation legally admissible?
In most contexts, yes — it's accepted as evidence that the carrier successfully transmitted the fax. Specific evidentiary rules vary by court and matter, so check with your attorney for high-stakes filings.
How long does SecurelyFax keep my receipts?
Per your account's retention policy. Default is 30 days for free-tier; paid plans extend that. HIPAA-tier accounts get longer retention with full audit logging.
Can I get a receipt for a fax I sent yesterday?
Yes. Every send is recorded in your outbox. Open the fax to see the full receipt.
What's the difference between "sending" and "delivered"?
"Sending" means the fax is in transit. "Delivered" means the recipient's machine acknowledged the pages. "Failed" means the carrier couldn't complete the transmission.
Last reviewed: 2026-05-30