eFax From $18.99/mo 9.2 Visit SendFax.to
clearlyip.com
What it is
SendFax.to is a cloud fax service for sending and receiving faxes through email and supported fax numbers. Users can email PDF, PNG, IMG, or DOC attachments to a destination address at sendfax.to and receive an email delivery-status confirmation. Incoming faxes can reach 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 on a mobile device and send from a computer, tablet, or smartphone. Multifunction printers can use scan-to-email for sending and email-to-print for incoming faxes; inbound routing to T.38-compatible PBXs, ATAs, and gateway devices is also supported. The API can send faxes and provide fax information or inbound and outbound callbacks, which must use HTTPS. An optional SendFax.to Device connects up to two physical fax machines. The service is paid from $17.99/mo and has no free plan. The maker’s brochure describes automatic encryption and password protection for sensitive inbound fax delivery and says this ensures HIPAA compatibility.
Spec sheet
- What it does
- SendFax.to is ClearlyIP’s cloud fax service for sending and receiving faxes through email, supported fax numbers and connected equipment.Read 15 Oct 2026 · clearlyip.com
- Intended users
- The maker describes the service for businesses that want to fax without relying on a traditional landline fax machine.Read 7 Oct 2026 · clearlyip.com
- API
- The REST API sends outbound faxes, returns fax information and supports inbound and outbound callbacks.Read 15 Oct 2026 · kb.clearlyip.com
- Headquarters
- Appleton, Wisconsin, USARead 28 Sep 2026 · clearlyip.com
- Founded
- 2019Read 28 Sep 2026 · clearlyip.com
- Company
- ClearlyIP says it serves businesses, ITSPs, OEMs, and communications providers with telecommunications services, applications, and customer-premise hardware.Read 7 Oct 2026 · clearlyip.com
- API callbacks
- Callback endpoints must use HTTPS and receive POST requests containing JSON fax status data.Read 15 Oct 2026 · kb.clearlyip.com
- API specification
- An OpenAPI specification is published at fax.sendfax.to/faxapi/v1/openapi.yaml.Read 15 Oct 2026 · kb.clearlyip.com
- Appliance
- The optional SendFax.to appliance connects up to two physical fax machines through two FXS ports.Read 15 Oct 2026 · kb.clearlyip.com
- Appliance retry behavior
- The appliance retries inbound delivery 10 times and attempts cloud upload up to 20 times before reporting failure.Read 15 Oct 2026 · kb.clearlyip.com
- Authorized senders
- Each fax-enabled DID can authorize up to 100 email addresses or domains for outbound faxing.Read 15 Oct 2026 · clearlyip.com
- Company acquisitions
- Crunchbase reports that ClearlyIP has acquired two organizations.Read 15 Oct 2026 · crunchbase.com
- Company founded
- LinkedIn lists ClearlyIP as founded in 2019.Read 15 Oct 2026 · linkedin.com
- Company headquarters
- ClearlyIP is headquartered in Appleton, Wisconsin, United States.Read 15 Oct 2026 · linkedin.com
- Company legal name
- Crunchbase lists the legal entity as Clearly IP Inc.Read 15 Oct 2026 · crunchbase.com
- Company ownership
- LinkedIn identifies ClearlyIP as privately held.Read 15 Oct 2026 · linkedin.com
- Company size
- LinkedIn lists ClearlyIP’s company size as 201–500 employees.Read 15 Oct 2026 · linkedin.com
- Delivery confirmation
- Senders receive an email reporting the fax delivery status.Read 15 Oct 2026 · clearlyip.com
- Documentation depth
- The knowledge base includes purchasing, inbound and outbound email faxing, printer setup, API faxing, T.38 configuration and appliance guides.Read 15 Oct 2026 · kb.clearlyip.com
- Email sending
- Users can email fax attachments to a destination address at sendfax.to, and receive an email delivery status confirmation.Read 7 Oct 2026 · clearlyip.com
- Fax appliance
- The optional SendFax.to Device supports connecting up to two physical fax machines to the platform.Read 7 Oct 2026 · clearlyip.com
- Hardware news
- ClearlyIP announced the SendFax.to Device on June 17, 2021 for connecting analog fax machines to its cloud service.Read 15 Oct 2026 · clearlyip.com
- Inbound fax email
- Inbound faxes can be routed to as many as two email addresses.Read 15 Oct 2026 · clearlyip.com
- Inbound fax limit
- Inbound faxes can be delivered to up to two email addresses.Read 7 Oct 2026 · clearlyip.com
- Inbound faxing
- YesRead 21 Sep 2026 · kb.clearlyip.com
- Launch date
- Telecom Reseller reported the SendFax.to platform launch on September 14, 2020.Read 15 Oct 2026 · telecomreseller.com
- Limit: concurrency
- Each purchased fax call path handles only one inbound or outbound fax concurrently.Read 15 Oct 2026 · kb.clearlyip.com
- Limit: inbound recipients
- Inbound fax delivery is capped at two email addresses per fax-enabled DID or call path.Read 15 Oct 2026 · kb.clearlyip.com
- Limit: pricing transparency
- The product page names low-volume, high-volume and metered subscriptions but does not show their prices.Read 15 Oct 2026 · clearlyip.com
- Limit: review coverage
- Trustpilot shows only two reviews, all from December 2021, and none in the preceding 12 months.Read 15 Oct 2026 · trustpilot.com
- Mobile scanning
- ClearlyIP says users can scan multiple pages with a mobile device and fax from a computer, tablet or smartphone.Read 15 Oct 2026 · clearlyip.com
- Mobile use
- The maker says users can scan multiple pages with a mobile device and send faxes from a computer, tablet, or smartphone.Read 7 Oct 2026 · clearlyip.com
- Multiple caller IDs
- Authorized users with multiple fax DIDs can select the sending number through a follow-up email.Read 15 Oct 2026 · clearlyip.com
- Outbound email fax
- Users send a fax by emailing attachments to a destination address using the recipient number in the address.Read 15 Oct 2026 · clearlyip.com
- PBX and gateway routing
- Inbound faxes can be routed to T.38-compatible PBXs, ATAs, and gateway devices.Read 7 Oct 2026 · clearlyip.com
- PBX integration
- Inbound faxes can be routed to T.38-compatible PBXs, ATAs and gateway devices.Read 15 Oct 2026 · clearlyip.com
- Praise: mobility
- A Trustpilot reviewer praised sending and receiving faxes anywhere with email notifications for new inbound faxes.Read 15 Oct 2026 · trustpilot.com
- Praise: usability
- Trustpilot reviewers described the interface as clean and user-friendly and said faxing became easier.Read 15 Oct 2026 · trustpilot.com
- Printer integration
- Multifunction printers can send through scan-to-email and print inbound faxes through email-to-print services such as HP ePrint.Read 15 Oct 2026 · kb.clearlyip.com
- Printer support
- Multifunction printers can send faxes through scan-to-email and print inbound faxes through email-to-print; HP ePrint-compatible printers are given as an example.Read 7 Oct 2026 · clearlyip.com
- Rating on Trustpilot
- 3.8 out of 5 from 2 reviewsRead 15 Oct 2026 · trustpilot.com
- Regional availability
- Fax-enabled T.38 numbers are described as available in most North American regions.Read 15 Oct 2026 · clearlyip.com
- SDKs
- The documentation identifies a REST/OpenAPI interface but does not list vendor SDK packages.Read 15 Oct 2026 · kb.clearlyip.com
- Security claim
- ClearlyIP’s brochure describes automatic encryption and password protection for inbound fax documents and says this supports HIPAA compatibility.Read 15 Oct 2026 · 14ip.com
- Service
- SendFax.to is a cloud fax service for sending and receiving faxes through email and supported fax numbers.Read 7 Oct 2026 · clearlyip.com
- Supported attachments
- The product page lists PDF, PNG, IMG and DOC files as faxable email attachments.Read 15 Oct 2026 · clearlyip.com
- T.38 support
- T.38-capable DIDs can route inbound fax calls to PBXs or devices, and outbound T.38 requires at least one fax call path.Read 15 Oct 2026 · kb.clearlyip.com
- Virtual fax number
- YesRead 21 Sep 2026 · kb.clearlyip.com
Plans and prices
Metered Fax Bursting $0.02 a month $0.02 per minute when enabled Optional extra fax capacity · additional call paths Read 15 Oct 2026 · kb.clearlyip.com
High Volume Faxing $24.99 a month monthly 2,000 fax minutes · approximately 3,000–3,500 pages/month · 1 concurrent fax per call path Read 15 Oct 2026 · clearlyip.com
Low Volume Faxing Priced on request 300 fax minutes · approximately 400–500 pages/month · 1 concurrent fax per call path Read 15 Oct 2026 · kb.clearlyip.com
Strong points and limits
Strong points
- Email faxing supports PDF, PNG, IMG, and DOC
- Incoming faxes can reach two email addresses
- Each DID can have up to 100 authorized senders
- API supports sending and fax callbacks
- Optional device connects up to two physical fax machines
Limits
- No free plan
- Pricing starts at $17.99/mo
- Callbacks must use HTTPS
- Inbound email delivery is limited to two addresses
Who it suits
SendFax.to suits businesses that want to send and receive faxes without relying on a traditional landline fax machine. It supports email, mobile devices, multifunction printers, compatible PBXs, and fax appliances.
Verdict
SendFax.to supports email-based faxing, device and PBX routing, and API workflows. It is a paid service from $17.99/mo with no free plan.
Where Specifiction places it
- Online Fax Services#30 of 1038.4
- Online fax services#36 of 1028.4
Alternatives to SendFax.toAll alternatives →
eFax From $18.99/mo 9.2 Visit 
FaxCore From $60/mo 9.1 Visit 
FAX.PLUS From $6.99/mo · Free plan 9.1 Visit 
Consensus Cloud Fax From $18.99/mo 9.1 Visit 
GotFreeFax From $1.25/mo · Free plan 9.1 Visit