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Fully-integrated fax functionality

Learn more about the features that make mFax the #1 rated cloud fax solution


Powerful document-centric features

The most advanced and reliable network infrastructure

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Fax-only infrastructure

Been struggling to find a reliable cloud faxing solution? Fax over IP (FoIP) is known to have reliability problems. Most networks are built for voice. Our backbone is built and optimized specifically for fax, allowing us to maximize quality and deliverability.

Automatic cloud storage

Never lose another fax. Every sent and received fax is automatically stored securely in the cloud. Tag your faxes to be searched later. Access your fax history from any device.


Security and compliance

mFax is built to satisfy even the most stringent of security and compliance requirements. User authentication, encrypted document exchange, advanced perimeter defense, and routine data backup are just a few of the things we do to keep your data secure. Click here to learn more

Advanced admin portal

We offer a robust, carrier-class administrative web interface. Easily create and manage users, assign fax numbers, and set account-level permissions from any web browser. Click here for more info on our Web Portal


Made with ❤️ by a globally distributed team

We are a fully distributed team with the shared goal of building world-class solutions that make business easier and by improving document-driven processes. We don’t outsource support (and never will).

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Meet our rockstar -support team

Documo believes in building awesome products our customers will love.

You can schedule a meeting with one of our experts,
We also believe in WOWing our customers at every opportunity. No outsourced people, getting queued up in some call center, or generic "we'll get back to you" messages here. Go for it, give us a ping. We love to chat :)

+1 (888) 966-4922Ask us anything
Tony Cox
Director Channel Partnerships
Brittany Woo
Senior Account Executive

Online faxing and a whole lot more

Switch to the #1 rated cloud fax service today


Educational fax resources

Download our resources about faxing for free. Our resources explain everything from how fax works to how to evaluate your needs when choosing a fax service.


Get in touch with our US based team of fax experts

We'll help you assess your fax needs and determine the best solution for your business.

+1 (888) 966-4922