Set and Forget
Move to a fax solution with the availability and scalability you can rely on. Never spend time on maintaining, troubleshooting or upgrading a fax server ever again.
The Right Fit for Your Business
Integrate faxing into custom, homegrown, or on premises applications without changing your workflow. Use advanced features to improve fax processes.
Rely on the Professionals
After thousands of projects and over 30 years in business, we know how fax works. Rely on our experts to move faxing to the cloud without interrupting processes.
The Retarus Advantage
Vast Integration Options
Built for Developers
Compliant and Secure
Ensure HIPAA or other requirements with regional processing and encryption options such as https/TLS, VPN, and S/MIME.
Customer Ratings and Reviews
Features
In addition to detailed in- and outbound reporting, we also provide administrators with live insights into their organization’s faxes as they’re in transmission.

Complete overview of all faxes currently in transmission
Key facts about every single transmission at a glance
Drilldown option for even more information
Create and upload your own cover page templates. Different cover pages can be assigned to departments, user groups, or users. Set a standard cover page or choose one per fax job.

Dynamic fields for recipient information
Add your logo or other graphical elements
Automatically fill in sender and transmission information
Use dynamic fields to enable exceptional use cases
Utilize multi-page cover pages
Keep a detailed overview of in- and outbound faxing across your entire organization.

Use filters to generate your own reports
Detailed overview of all fax transmissions. Available for sent and received faxes
Download fax documents directly from reporting (optional)
Drilldown with detailed metadata for every single fax
Multiple users, departments, or applications sending faxes? Retarus’ own NeverBusy Technology ensures that two faxes are never simultaneously sent to the same recipient. This avoids busy signals, improves delivery rates and ensures smooth processes.
Need a rendering engine built for the most diverse requirements? Ours can easily process various document layouts, fonts, languages, text formats and file types including TXT, HTML, XSLX, DOCX, PDF, image files and many more.

Various fonts and languages
Right to left languages
Tables
QR codes and barcodes
Shapes
Your business, your application, your Cloud Fax. Configure integrations, transmissions and documents according to your needs.

Edit resolution, cover pages, templates and more
Upload your own cover pages templates
Why Choose Retarus Cloud Fax?
Reliable Infrastructure
Security and Compliance

Premium Performance
Reporting and Administration
Migration and Implementation
Customer Experience
Improve Business Processes with Cloud Fax Add-Ons
Optical Character Recognition
Automatically receive faxes as searchable PDF documents to simplify downstream workflows.
Read moreBarcode and QR Code Recognizer
Automatically read or print barcodes on faxes, route inbound documents to specific numbers, email addresses or folders based on barcode information.
Read moreArchiving
Keep sent and received faxes including metadata in our storage or have them automatically be copied into your own archive.
Read moreFax Auto Reply
Set up automatic, customizable replies to received faxes.
Read more
Want to Find Out More About Retarus Cloud Fax?
Replace Fax Servers
Move from servers to the cloud. Modernize, remove technical debt and cut costs significantly
Enterprise Cloud Fax
Find out what makes Retarus Cloud Fax the preferred choice for many of the world’s largest enterprises
Corporate Blog
Read about product developments, market news, and other updates from the Retarus cosmos
Frequently Asked Questions
How can you be sure replacing fax servers will work for my organization?
Because our Cloud Fax platform is already there and has been for decades. High performing, scalable, and dependable. All we need to do is connect your applications. Just like we have for thousands of other businesses. In the world of faxing, our experts have seen it all. And they’ll find a solution that works for you, too.
Where can I find out more about cloud fax APIs?
Check out our API Knowledge Center. Or just give us a call. Your choice. We’re here for you either way.
What references do you have?
Market leaders in all industries over the world count on us, for example B Braun, Merck and UPS. Feel free to check out our case studies to find out more.
Where can I find out more?
Visit our Cloud Fax overview page. Read our case studies and analyst reports. Check out our corporate blog and upcoming webinars, and feel free to book a demo. We’re always happy to help.