Fax From OneDrive — Import-from-Link or a Power Automate Flow
A file in OneDrive is one share link away from being faxable. Send FAX Mail has no OneDrive app, and we do not imply one. The direct route uses our import-from-link feature: create a link to the OneDrive file and give it to our server, which fetches the file and faxes it. For event-driven sends, Power Automate can watch a OneDrive folder and call our REST API when a file appears. The file stays in OneDrive; only the fax leaves.
Plan requirement
Pasting a OneDrive link at /dashboard/import works on any paid plan and needs no API access. Sending the same link through the REST API's document_url field — the Power Automate route — requires the Business ($79.99/mo) or Enterprise ($169.99/mo) plan, since the API is gated to those tiers. Power Automate is included with most Microsoft 365 personal and business plans on the Microsoft side. A OneDrive share link must be reachable over public HTTPS for the fetch to retrieve it.
How it works
For a manual send, right-click the file in OneDrive, create an Anyone with the link view link, and paste it into the import screen at /dashboard/import (or the API's document_url field). Our server fetches the file behind an SSRF guard, normalizes it to a fax-ready PDF, and dials the number you give. For automation, a Power Automate flow triggered by When a file is created in a OneDrive folder generates a share link and POSTs it as document_url to /v1/faxes, so dropping a document into a watched folder sends it. Either way, a document that must stay private can instead be read as content and sent inline rather than via a public link.
What you can do
- ✓Fax a OneDrive file by pasting its share link into import-from-link
- ✓Use /dashboard/import for a no-API manual send, or document_url for the Business+ API
- ✓Watch a OneDrive folder with Power Automate to auto-fax new files
- ✓Let our server normalize the fetched file to a fax-ready PDF
- ✓Send inline content when a file must not be exposed by a link
- ✓Track delivery via GET /v1/faxes/:id or a registered webhook
Setup steps
- 1For a manual send on any paid plan, create a view link to the OneDrive file
- 2Paste it at /dashboard/import with the destination number and send
- 3For automation, put the account on Business or Enterprise and create a key at /dashboard/developers
- 4Build a Power Automate flow that share-links new files and POSTs to /v1/faxes
- 5Confirm delivery with GET /v1/faxes/:id or a webhook subscription
Example
POST /v1/faxes
Authorization: Bearer sfm_live_xxxxxxxx
Content-Type: application/json
{
"to": "+15551234567",
"document_url": "https://onedrive.live.com/download?resid=...&authkey=..."
}OneDrive Fax — FAQ
No. We publish no OneDrive app, and we would not suggest one. Faxing a OneDrive file uses either import-from-link — you hand our server a share link and it fetches the file — or a Power Automate flow that calls our REST API. Both keep the file in OneDrive and use Microsoft's or our own standard mechanisms.
For the import-from-link path, yes: our server has to fetch the file, so the share link must be reachable over public HTTPS, and the fetch is SSRF-guarded. If you do not want a publicly reachable link, use Power Automate's Get file content and send the bytes inline as base64, which keeps the file from being exposed by a link.
Yes, with Power Automate. A flow triggered by a new file in a chosen OneDrive folder creates a share link and POSTs it to /v1/faxes with a preset or looked-up number. Reserve that folder for outgoing faxes so only documents you mean to send land there, since every new file will go out.
PDFs and common images fax directly, and Office files convert when the operator has the document-conversion service configured. Our server normalizes whatever it fetches into a fax-ready PDF before dialing, so a Word document or a scanned image in OneDrive can be sent the same way a PDF is.
Build with the OneDrive Fax
API access and webhooks are included on the Business and Enterprise plans. Create a key at /dashboard/developers and start sending.
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