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Fax guide: answers to the most common questions

Short answers with video and step-by-step instructions – from faxing from your phone to the transmission report.

How to send a fax from your phone
Take a photo of the form, name the recipient, confirm: that's how you fax from an iPhone or Android phone – no fax machine and no separate fax app.
How to send a fax by email
Fax number before the @, attach the document, hit send: with email to fax you can fax straight from Outlook, Gmail or your scanner.
Send a fax to your health insurer or doctor's office
Send claim forms, applications and certificates by fax – straight from Claude or ChatGPT, with a saved contact and a transmission report.
The fax transmission report – what it shows
After every fax you receive a transmission report as a PDF. Here you'll see what it contains, what “delivered” means and where to find it.
How to send an international fax
Write the number in international format, see the price first, confirm: that's how you fax to the USA, Japan or any other country.
How do I send a fax online?
Upload the document, enter the fax number, check the price and send – with mcpfax right on mcpfax.de (even without an account), in an AI chat with Claude or by email to faxnumber@fax.mcpfax.de. From €1.00 for the first page and €0.20 per additional page, no subscription.
Can you fax for free? What a fax really costs
Free fax services often have catches such as ads, page limits or waiting times. With mcpfax, a fax costs €1.00 for the first page and €0.20 per additional page – no subscription, price shown upfront.
How do I fax from my iPhone?
To fax from an iPhone, use the Claude app: photograph the document or attach a file, give the fax number, confirm. Alternatively, use the Mail app to send to faxnumber@fax.mcpfax.de – from €1.00 per fax, no dedicated fax app.
How do I fax from an Android phone?
On Android, you fax in the Claude app: attach a file or photo, give the fax number, confirm. Or write an email in the Gmail app to faxnumber@fax.mcpfax.de – from €1.00 per fax, no fax app.
How do I send a fax from a PC or laptop?
On a PC, you fax in the browser right on mcpfax.de (even without an account), with Claude, or by email to faxnumber@fax.mcpfax.de from Outlook or Gmail: upload the file, give the number, send. No modem or fax machine, from €1.00.
How do I fax without a fax machine?
Without a fax machine, you fax over the internet: photograph or attach the document, give the fax number, check the price, confirm. mcpfax transmits it as a real fax – from €1.00 for the first page, with no machine and no phone line.
Where can I send a fax – and can I do it from home?
On the go, you can fax at The UPS Store, office supply stores like Staples or many public libraries – check prices and opening hours first. From home, mcpfax lets you fax without a fax machine, in an AI chat or by email, from €1.00 per fax.
How do I send a fax from Gmail?
In Gmail, write an email to faxnumber@fax.mcpfax.de (e.g. 004930123456@fax.mcpfax.de) and attach the document. First add your Gmail address as an approved sender with mcpfax – from €1.00 per fax.
Fax cover sheet: what goes on it?
A fax cover sheet should include the sender, recipient, both fax numbers, the date, the page count including the cover sheet, a subject and a short message, plus a confidentiality notice if needed. Claude can write it and fax it along with mcpfax.
How do I send a fax from Outlook?
In Outlook, write an email to faxnumber@fax.mcpfax.de (number with 00 or + and the country code) and attach the document. It works in Outlook on desktop, on the web and in the app; a fax costs from €1.00, with no subscription.
Can I send just one fax without a subscription?
Yes: on mcpfax.de you can send a fax even without an account and pay for that one fax only – no subscription, no monthly fee. A one-page fax in zone 1 (including the EU, UK and US) costs €1.00, each additional page €0.20.
How do I fax a PDF?
Attach the PDF in your chat with Claude or email it to faxnumber@fax.mcpfax.de. The file can be up to 15 MB; every page is counted, and in zone 1 the first page costs €1.00 and each additional page €0.20.
Did my fax go through? Here's how to check
A fax has gone through when its status is “delivered” – it was then transmitted in full to the receiving device. With mcpfax, you can ask in the chat or check the transmission report that arrives as a PDF by email after every fax.
How much does it cost to fax per page?
With mcpfax, a fax in zone 1 (EU/EEA, Switzerland, UK, US, Canada and more) costs €1.00 for the first page and €0.20 for each additional page, double for other countries. Examples: 1 page €1.00, 3 pages €1.40, 10 pages €2.80.
How do I fax without a landline?
All you need is internet: with mcpfax you send the document from your chat with Claude or by email, and mcpfax transmits it as a real fax into the phone network. No fax machine, no modem, from €1.00 per fax.
Do I need a fax app?
No. With mcpfax, you fax from the Claude app, by email to faxnumber@fax.mcpfax.de from your mail app, or directly in your browser at mcpfax.de. It works on iPhone and Android, from €1.00 per fax, with no subscription.
My printer can't fax – now what?
Scan the document (or take a photo with your phone) and send the PDF with mcpfax in the chat or by email. If your printer supports scan to email, it can send straight to faxnumber@fax.mcpfax.de, as long as its sender address is allowed.
How do I send a fax to the IRS?
Take the fax number from the letter or notice you received from the IRS, HMRC or your tax office, and send the document with mcpfax from the chat or by email. Check first whether the office still accepts faxes; the transmission report proves the transmission.
My router or VoIP line won't fax – what can I do?
Faxing over internet phone service (VoIP) is often unreliable, which is why faxes sent through a router frequently fail. Fax online with mcpfax instead – in an AI chat, by email or at mcpfax.de, no fax machine, from €1.00 per fax.
Where do I find the fax number of a company or agency?
The fax number is usually in the letterhead of a letter, in the website footer, on the contact page or in your notice. mcpfax and Claude don't look up numbers on the internet – you provide the number yourself and see the price before sending.
Take a photo of a paper document and fax it from your phone
Photograph each page in bright light, straight from above, and send the photos in the Claude app with the fax number. You see the pages and price beforehand – 3 pages in zone 1 cost €1.40, for example.
How to enter a fax number correctly: +44 or 0044?
+44 and 0044 mean the same thing – both are correct. The key is dropping the leading 0 of the area code: 020 7946 0100 becomes +44 20 7946 0100, or 00442079460100 for email to fax.
How to send a fax to the USA
Write the US fax number with +1 or 001 and send the document from Claude, ChatGPT or by email. The US is in zone 1: €1.00 for the first page, €0.20 for each additional page.
Send a cancellation by fax – insurance, phone contract, subscription
Have the cancellation letter written, sign it, take a photo and send it to the fax number from your contract documents – 1 page costs €1.00. Keep the transmission report as proof of transmission.
Is a fax legally valid?
A fax transmission report proves that a document was transmitted in full to a fax number at a specific time – not that it was read. Courts assess how much that counts differently; formal requirements take precedence.
Meeting a deadline: sending a fax to the court
Send the signed document well before the deadline to the fax number from a letter from the court, and keep the transmission report. Depending on the country, lawyers must use electronic filing. Not legal advice.
How to send an objection or appeal by fax
Whether an objection by fax is allowed is usually stated in the notice. If so: write it, sign it, send it to the fax number from the notice well before the deadline, and keep the transmission report. Not legal advice.
Is faxing secure and privacy-compliant?
With mcpfax, the connection up to the service is encrypted via HTTPS, documents are deleted after 30 days and fax numbers are masked in logs. The transmission over the phone network, however, is not end-to-end encrypted – check the number and the receiving device.
My fax didn't go through – what are the most common errors?
Usually the number is wrong or in the wrong format, the line is busy, there's no fax machine on that number, or the recipient's machine is out of paper. With mcpfax, the status shows the error, the cost is refunded and you resend.
The fax line is always busy – what can I do?
Resend the fax later, check whether the number really is a fax number, and ask the recipient. With mcpfax, you start a new attempt with one sentence in the chat, and failed attempts are refunded.
How do you fax correctly?
Send in portrait format, with dark text at 10 pt or larger and no colored background – a fax is black and white. Online, the question of face up or face down doesn't arise: the file is sent directly.
Send a test fax – how to check everything works
Send one page to the public test number +49 1805 237077000 and check the status and transmission report. With mcpfax, the test fax costs the normal price: €1.00 for one page.
How to send a fax on Windows – without a modem
Windows “Fax and Scan” needs a fax modem and a phone line. Without a modem, you fax with mcpfax directly in your browser at mcpfax.de, with Claude or by email from Outlook – from €1.00 per fax.
How to send a fax from Gmail, Yahoo Mail & co.
From Gmail, Yahoo Mail, iCloud Mail or any other mailbox, write an email to faxnumber@fax.mcpfax.de and attach the document. Just once, you allow your sender address at mcpfax.
Can you fax to an email address or a cell phone number?
No. A fax always goes to a fax number, meaning a fax machine or fax service; cell phone numbers can't receive faxes. Email to fax is the opposite direction: you write an email, and a fax arrives at the recipient's end.
How to send a photo or JPG as a fax
Attach the photo or the JPG or PNG file in the chat, give the fax number and confirm – mcpfax turns it into a fax page. Make sure the contrast is strong, because a fax is black and white; one page costs €1.00.
How do I fax a Word document?
Attach the DOCX file in a chat with Claude or to an email to faxnumber@fax.mcpfax.de – mcpfax converts it to a PDF automatically and faxes it. In the EU, UK, US and other zone 1 countries the first page costs €1.00, each additional page €0.20.
How do I send a fax to a government office or city hall?
Take the fax number from the agency's letter, attach your document in a chat with Claude or email it to faxnumber@fax.mcpfax.de. One page costs €1.00; some agencies, however, require a different channel for certain matters.
Fax or email – which is more binding?
With a fax, the transmission report proves the complete transmission with date and time, and the signature is visible; with a regular email, proof of delivery is usually weak. Neither proves that it was read – this is not legal advice.
Health data by fax: sending test results and prescriptions
Attach the test results or prescription request in a chat with Claude, check the office's fax number digit by digit and add a cover sheet with a confidentiality notice. The connection to mcpfax is encrypted, and documents are deleted after 30 days.
How do I fax an insurance claim?
Combine the claim form and photos in one PDF, send it by email to faxnumber@fax.mcpfax.de or in a chat with Claude, with the policy number in the subject. 4 pages cost €1.60 in the EU, UK, US and other zone 1 countries; keep the transmission report as proof.
How do I send a power of attorney by fax?
Sign the power of attorney, photograph it in the Claude app or attach it as a PDF, give the fax number and confirm – one page costs €1.00. Whether the original is also needed, check with the recipient; this is not legal advice.
Sign a document on your phone, then fax it
Either sign on paper and photograph it in the Claude app, or sign the PDF digitally in a PDF app and attach it – then give the fax number and confirm. Two pages cost €1.20 in zone 1.
How do I fill out a PDF form and fax it?
Fill out the form in a PDF program or PDF app, save it and send it to the fax number in a chat with Claude – no printer at all. Claude can explain the fields if you like; two pages cost €1.20 in the EU, UK, US and other zone 1 countries.
Fax status: sent or delivered?
“Sent” means the fax was handed over to the fax network; “delivered” means it was transmitted completely to the receiving machine. If a fax fails, mcpfax refunds the cost to your balance.
Is a fax transmission report proof?
The transmission report proves the time, recipient number, page count and result of the transmission, with a preview of the first page – not that the fax was read. With mcpfax it arrives as a PDF after every fax; keep it with the document.
Trustworthy fax service – how do I recognize one?
A trustworthy fax service shows the price before every fax, has no hidden subscription, names the company and address behind it, provides a transmission report, clear data protection rules and deletion periods. With mcpfax: prepaid from €1.00, deletion after 30 days, operated by PIT Webservices GmbH.
Comparing fax services – what really matters?
Compare fax services by price per page, subscription or prepaid, transmission report, international prices and ways to send. Example mcpfax: €1.00 for the first page, €0.20 for each additional one, no subscription, PDF transmission report, faxing via chat, email or website.
How to send a fax from an iPad or tablet
Yes: from an iPad or Android tablet you can fax in the Claude app with the mcpfax connector, by email to faxnumber@fax.mcpfax.de, or right on mcpfax.de in the browser. From €1.00 per fax, no fax machine and no subscription.
Faxing multiple pages – what to watch out for?
Combine all pages into one PDF in the right order and check the page count before sending. With mcpfax, the first page costs €1.00 and each additional page €0.20 – up to 100 pages and 15 MB per fax.
Send a fax from a Mac – without a modem or phone line
On a Mac you fax without a modem: in Claude (browser or desktop app) with the mcpfax connector, by email from Apple Mail to faxnumber@fax.mcpfax.de, or right on mcpfax.de. From €1.00 per fax, all you need is internet.
Does a fax count as “in writing”?
That depends on the country, the contract and the type of statement: some statements require an original signature that a fax can't replace. If in doubt, check the contract or the recipient's requirements – this is not legal advice.
Fax sender ID: what does the recipient see?
The recipient sees your document and the sender ID at the top of every fax. With mcpfax you set the ID in your account (max. 20 characters, e.g. company name or your own number); the transmission report shows it in the “Header ID” field.
Fax etiquette: timing, greeting and cover sheet
Send business faxes during the recipient's business hours, with a cover sheet (recipient, sender, subject, page count) and a formal greeting; give brief notice before important faxes. On mcpfax.de you can have the cover sheet created automatically.
How long does a fax take?
A fax usually goes through within a few minutes, typically under a minute per page. With mcpfax you see the status in the chat: “sent” means handed over to the fax network, “delivered” means completely transmitted.
How to resend a fax that failed
Write “Please send it again” in the chat: Claude shows the recipient, pages and price and resends the fax after your confirmation. The cost of the failed attempt is refunded to your mcpfax balance.
Is fax still relevant in 2026?
For many recipients, yes: government agencies, doctors' offices, law firms and insurers still accept documents by fax, and in Japan fax is common in everyday business. You don't need a fax machine: with mcpfax you fax from an AI chat, by email or right on mcpfax.de.
How to fax the Social Security office or Child Benefit Office
Take the fax number from your letter, photograph or attach the documents in Claude and confirm the displayed price. mcpfax faxes them without a fax machine, from €1.00 for the first page, with a PDF transmission report.
How to fax a doctor's note to your employer
If your employer wants your sick note by fax: photograph it in the Claude app, give the fax number, confirm the price. mcpfax faxes it without a fax machine; one page costs €1.00, and the transmission report arrives as a PDF.
How to fax your pension provider or the Pension Service
Write an email to faxnumber@fax.mcpfax.de (number with 00 and country code) and attach your PDF. mcpfax faxes it to your pension provider or the Pension Service, from €1.00 for the first page, with a transmission report.
How to send a fax to your landlord or property manager
Have Claude draft the repair request or notice, give the property manager's fax number and confirm the price. mcpfax faxes the letter from €1.00 and provides a transmission report as proof of transmission.
How to make a GDPR subject access request by fax
Have Claude write a subject access request under Article 15 GDPR and fax it to the company with mcpfax from €1.00. The transmission report proves the date; the response deadline is generally one month.
How to dispute a debt collection letter by fax
Dispute the claim in writing, attach your dispute letter in Claude and give the fax number from the collection letter. mcpfax faxes it from €1.00, and the transmission report proves the date and transmission. This is not legal advice.
How do I fax an embassy or consulate?
Yes, you can do it without a fax machine: with mcpfax you send the fax from Claude or ChatGPT or by email, always writing the number with a plus sign and country code. To the EU, Switzerland, the UK, the US, Japan and more, the first page costs €1.00 and each additional page €0.20; other countries cost double.
How do I fax my bank an instruction or power of attorney?
Yes, if your bank accepts faxes for this instruction: with mcpfax you fax the signed PDF by email to faxnumber@fax.mcpfax.de or from Claude. From €1.00 for the first page, with a PDF transmission report.
How do I fax documents to the unemployment office or Jobcentre?
Yes, even without a fax machine: photograph the documents in the Claude app and give the fax number from your letter, and mcpfax sends them. One page costs €1.00, each additional page €0.20, and you get a transmission report as a PDF.
How do I request a birth or marriage certificate by fax?
Yes, if your records office accepts applications by fax: send the completed application by email to faxnumber@fax.mcpfax.de or from Claude. Two pages cost €1.20, and the transmission report arrives as a PDF.
How do I fax a long-term care application?
Yes, without a fax machine: attach the application in Claude, give your care insurer's fax number, and mcpfax sends it after you confirm. Three pages cost €1.40, and the transmission report records the date and time.
How do I fax a note to school or daycare?
Yes, right from your phone: photograph the absence note in the Claude app and say it should go to the school; mcpfax faxes it after you confirm. One page costs €1.00, and saved contacts spare you the typing next time.
How do I fax a photo from WhatsApp?
Yes: save the image from WhatsApp on your phone and attach it in the Claude app or email it to faxnumber@fax.mcpfax.de. mcpfax turns it into a fax page; one page costs €1.00.
How do I fax a file from Google Drive or Dropbox?
Yes: download the file from Google Drive or Dropbox and attach it in Claude or email it to faxnumber@fax.mcpfax.de. A share link alone is not enough; PDF, DOCX, JPG, PNG and TXT up to 15 MB work.
How do I fax a handwritten form so it stays legible?
Write with a dark pen in block capitals and photograph the form in good light, and it will arrive legibly. Fax is black and white, colours become shades of grey; with mcpfax you fax the photo from €1.00 per page.
Why is my fax unreadable?
Usually it's a blurry original, weak contrast, colours or text that is too small, because fax is black and white. It's best to fax a PDF with black text on white; use photos only in good light and with the whole page in the frame.
How do I fax one document to multiple recipients?
Name several recipients from your address book in the chat; mcpfax sends the document one after another, each fax with its own price and confirmation. Advertising faxes without consent are prohibited in the EU.
How can a business fax without a fax machine?
Your team faxes by email to faxnumber@fax.mcpfax.de or in an AI chat, with no machine and no phone line, from €1.00 per fax with a transmission report. But note: mcpfax only sends and does not receive faxes.
Can you send a fax from Microsoft Teams?
Teams itself doesn't send faxes. With mcpfax you send the document by email from Outlook to faxnumber@fax.mcpfax.de instead, or in a chat with Claude, from €1.00 per fax.
How do I send a fax while on vacation or abroad?
With mcpfax you fax from anywhere you have internet, using the Claude app or email. The price depends on the destination: zone 1 (incl. EU, CH, UK, US) €1.00 for the first page + €0.20 per additional page, other countries double.
How does a fax actually work?
A fax scans the page in black and white, transmits it as a signal over the phone network, and the receiving machine prints it out. Today you send the document over the internet to a service like mcpfax, which passes it on to the fax network.
Can you send a fax with ChatGPT?
Yes: you add mcpfax to ChatGPT as an app (Settings → Apps → Advanced settings → Developer mode, from ChatGPT Plus on the web). ChatGPT then faxes your document after showing the price and getting your confirmation, from €1.00 per fax.
Can AI write my cancellation letter and fax it?
Claude drafts the cancellation letter from your bullet points; you review it, sign if needed and fax it with mcpfax from €1.00. The transmission report proves the transmission. This is not legal advice.
Can AI translate my letter and fax it abroad?
Attach the letter in Claude and name the target language; after your review, mcpfax faxes the translation abroad. In zone 1 (incl. EU, CH, UK, US) the first page costs €1.00, other countries double.