SendFax.to
SendFax.to is a cloud fax service for sending and receiving faxes through email and supported fax numbers.
What SendFax.to is
SendFax.to is a cloud fax service for sending and receiving faxes through email and supported fax numbers. Users can send PDF, PNG, IMG, or DOC attachments to a destination address at sendfax.to and receive an email delivery-status confirmation. Incoming faxes can go to up to two email addresses, and each fax-capable DID can be associated with up to 100 authorized email addresses or domains. Users can scan multiple pages with a mobile device and send from a computer, tablet, or smartphone. Multifunction printers can send by scan-to-email and print incoming faxes through email-to-print; inbound routing to T.38-compatible PBXs, ATAs, and gateways is also supported. The API can send faxes, provide fax information, and handle inbound and outbound callbacks; callback URLs must use HTTPS. An optional SendFax.to Device connects up to two physical fax machines. The maker's brochure describes automatic encryption and password protection for sensitive inbound fax documents, claiming this ensures HIPAA compatibility.
Good
- Sends PDF, PNG, IMG, and DOC attachments by email
- Inbound faxes can reach two email addresses
- Supports mobile, computer, and tablet sending
- API supports fax callbacks and information
- Optional device connects up to two fax machines
Watch out
- No free plan
- Inbound delivery is limited to two email addresses
- Callback URLs must use HTTPS
Who it suits
SendFax.to suits businesses that want to send and receive faxes without relying on a traditional landline fax machine. It may also fit teams using email, mobile devices, multifunction printers, or supported fax-routing hardware.
Verdict
SendFax.to offers several ways to send, receive, and route faxes, including email, an API, and optional hardware. Consider its paid entry price and inbound email limit when evaluating fit.
Plans and prices
From SendFax.to's own pricing page, checked 15 Oct 2026.
| Plan | Price | What it gives you |
|---|---|---|
| Metered Fax Bursting | $0.02 a month | Optional extra fax capacity · additional call paths · $0.02 per minute when enabled |
| High Volume Faxing | $24.99 a month | 2,000 fax minutes · approximately 3,000–3,500 pages/month · 1 concurrent fax per call path · monthly |
| Low Volume Faxing | Priced on request | 300 fax minutes · approximately 400–500 pages/month · 1 concurrent fax per call path |
The facts
Each one read from SendFax.to's own pages, with the date it was checked.
What it does
- API
- The REST API sends outbound faxes, returns fax information and supports inbound and outbound callbacks.checked 15 Oct 2026
- API callbacks
- Callback endpoints must use HTTPS and receive POST requests containing JSON fax status data.checked 15 Oct 2026
- API specification
- An OpenAPI specification is published at fax.sendfax.to/faxapi/v1/openapi.yaml.checked 15 Oct 2026
- Authorized senders
- Each fax-enabled DID can authorize up to 100 email addresses or domains for outbound faxing.checked 15 Oct 2026
- Delivery confirmation
- Senders receive an email reporting the fax delivery status.checked 15 Oct 2026
- Documentation depth
- The knowledge base includes purchasing, inbound and outbound email faxing, printer setup, API faxing, T.38 configuration and appliance guides.checked 15 Oct 2026
- Email sending
- Users can email fax attachments to a destination address at sendfax.to, and receive an email delivery status confirmation.checked 7 Oct 2026
- Hardware news
- ClearlyIP announced the SendFax.to Device on June 17, 2021 for connecting analog fax machines to its cloud service.checked 15 Oct 2026
- Inbound fax email
- Inbound faxes can be routed to as many as two email addresses.checked 15 Oct 2026
- Inbound faxing
- Yeschecked 21 Sep 2026
- Inbound fax limit
- Inbound faxes can be delivered to up to two email addresses.checked 7 Oct 2026
- Intended users
- The maker describes the service for businesses that want to fax without relying on a traditional landline fax machine.checked 7 Oct 2026
Where it runs
- Appliance
- The optional SendFax.to appliance connects up to two physical fax machines through two FXS ports.checked 15 Oct 2026
- Appliance retry behavior
- The appliance retries inbound delivery 10 times and attempts cloud upload up to 20 times before reporting failure.checked 15 Oct 2026
- Fax appliance
- The optional SendFax.to Device supports connecting up to two physical fax machines to the platform.checked 7 Oct 2026
The company
- Company
- ClearlyIP says it serves businesses, ITSPs, OEMs, and communications providers with telecommunications services, applications, and customer-premise hardware.checked 7 Oct 2026
- Company acquisitions
- Crunchbase reports that ClearlyIP has acquired two organizations.checked 15 Oct 2026
- Company founded
- LinkedIn lists ClearlyIP as founded in 2019.checked 15 Oct 2026
- Company headquarters
- ClearlyIP is headquartered in Appleton, Wisconsin, United States.checked 15 Oct 2026
- Company legal name
- Crunchbase lists the legal entity as Clearly IP Inc.checked 15 Oct 2026
- Company ownership
- LinkedIn identifies ClearlyIP as privately held.checked 15 Oct 2026
- Company size
- LinkedIn lists ClearlyIP’s company size as 201–500 employees.checked 15 Oct 2026
- Founded
- 2019checked 28 Sep 2026
- Headquarters
- Appleton, Wisconsin, USAchecked 28 Sep 2026
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