# Fax Confirmation: How to Prove Your Fax Was Delivered What a fax transmission report shows, how to get FaxUp's delivery report PDF on your iPhone or Android phone, and what it does and doesn't prove when an office says it never got your fax. By [Dan Bayer](https://faxup.net/about) · Last updated: November 12, 2026 **To prove a fax was delivered, keep the transmission report: it shows the number dialled, the time, the page count and that the receiving machine confirmed every page.** FaxUp shows a Delivered status and can email that report as a PDF. When the deadline matters (a tax authorization, an insurance appeal, a signed contract) you want more than "I think it went through". A fax gives you something email doesn't: the receiving machine confirms what it got, and you can keep a record of it. ## How a fax confirms itself Fax machines follow the ITU-T T.30 procedure. After each page, the receiving side sends back a message saying the page arrived correctly, or asking for it again. At the end of the call, the carrier knows whether every page was confirmed. That is what a "delivered" status means: not that someone read it, but that the machine on the other end accepted all the pages. ## What FaxUp gives you - **Live status.** In the app and under "Your faxes" on [faxup.net/send](https://faxup.net/send), each fax moves from Sending to Delivered, or to Failed after its retries. - **A notification** on your phone when the fax is delivered. - **A transmission report PDF by email**, if email notifications are turned on in the app. The email says "Your fax was delivered" and carries a one-page report. The report lists: | Line | What it shows | | --- | --- | | Status | Delivered | | To | The fax number dialled, with country code | | Pages | Pages transmitted, including the cover page | | Subject | The subject you gave, if any | | Time | When delivery was confirmed, in UTC | | Transmission reference | The carrier's ID for this fax | It ends with a note that the receiving fax machine acknowledged the transmission. It is a PDF, so you can save it in Files, print it, or forward it to whoever needs proof. ## Turn on the email report 1. Open the FaxUp app on your iPhone or Android phone. 2. In the app's settings, turn on email notifications and enter the address the reports should go to. 3. Sign in with the same email on faxup.net if you also send from the web, so both share one account. ## When the office says it never arrived 1. **Check the report's number** against the number they gave you. A delivered fax to a wrong but working fax line still says "Delivered". 2. **Send them the report** with the time and page count; it can help them find the pages in a shared inbox or a digital fax system. 3. **Resend with a cover page** marked with their reference number and "Resent, originally sent on \[date\]". The [cover sheet maker](https://faxup.net/fax-cover-sheet) does this in a minute. 4. **Keep both reports.** If there is a dispute about a deadline, two delivered reports are better than one. ## Keep the right things For anything official, keep three things together: the document exactly as sent (save the PDF), the transmission report, and any letter or form that gave you the fax number. Then the question "did you send it, to where, and when?" has a one-file answer. Ready to send it? One fax is $2.99, any number of pages, with no subscription. You see every page as it will print before it goes, and a fax that can't be delivered gives its credit back. [Send a fax for $2.99](https://faxup.net/send)[Fax cover sheet maker (free) →](https://faxup.net/fax-cover-sheet) A cover page with your name, the page count and a reference makes a fax easy to match to your file. ## Questions ### Does FaxUp give me a fax confirmation? Yes. Every fax shows its status until it is delivered. If you turn on email notifications in the FaxUp app, a delivered fax also brings an email with a one-page transmission report PDF you can keep or forward. ### What is on the transmission report? The status (Delivered), the number the fax went to, the number of pages, the subject if you gave one, the time in UTC, and a transmission reference from the carrier. ### Does the report prove the recipient read my fax? No. It shows the receiving fax machine or fax service acknowledged the pages. What happens after that, like a misplaced printout or a digital inbox nobody checks, is on their side. That's why a cover page with your name and reference number helps. ### What if the fax failed? You get a 'could not be delivered' message instead of a report, and the credit goes back to your balance. See why a fax fails for what to do next. ### Can I get a confirmation for a fax sent from the website? The website shows each fax's status under Your faxes. The emailed report PDF comes from the app's email notification setting, so sign in to the app with the same email and turn it on. ## Related guides - [Why a fax fails, and what to doThe real reasons faxes fail, from FaxUp's own delivery records: dropped calls, no fax tone, busy lines. What each one means, how FaxUp retries, and what you can fix.](https://faxup.net/fax-failed) - [Fax the IRS from your phoneIRS fax numbers for Forms 2848, 8821, SS-4, 4506-T, 2553, 8857, 14039, 15227 and 911, checked on irs.gov, plus the signature rule that gets phone-signed forms rejected.](https://faxup.net/fax-to-irs) - [Sign and fax from an iPhoneSign a PDF on your iPhone with FaxUp's Fill & Sign and fax it in one go, and know when the office needs a pen signature on paper instead (the IRS does for some forms).](https://faxup.net/sign-and-fax-from-iphone) - [One fax, no subscriptionPay $2.99 for a single fax of any length, from the web or the FaxUp app, with nothing that renews. When a credit pack or a plan is cheaper, worked out with real FaxUp prices.](https://faxup.net/one-fax-no-subscription) ## Sources - [ITU-T Recommendation T.30: procedures for document facsimile transmission (page-by-page confirmation between machines)](https://www.itu.int/rec/T-REC-T.30) - [Apple App Store: FaxUp (email confirmation with a transmission report PDF)](https://apps.apple.com/app/faxup-send-fax-from-phone/id6477722416) - [Google Play: FaxUp (proof of delivery features)](https://play.google.com/store/apps/details?id=com.reistech.faxup) Outside sources were checked on November 12, 2026. Something wrong or out of date? Email [support@faxup.net](mailto:support@faxup.net). --- Source: https://faxup.net/fax-confirmation (Markdown copy of the page; the HTML page is canonical).