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Cloud Based Fax Service End of Fax Server.
Beginning of Fax Service.

Fax Service, Not Fax Server.

There are many reasons why looking for an innovative fax solution makes sense: Fax server at its limit or service contracts that cost a lot and offer little. Discontinued manufacturer support or server downtime that puts your business processes at risk. Problems with peak loads or IP conversion requiring investments in new hardware. The list is endless. Make the switch now – replace your fax server and experience hassle-free faxing in the cloud with Retarus Cloud Fax Services.

Cost and Savings Potential Each Year

Cost and Savings Potential over Five Years

Comparative calculation of a Retarus customer with 10,000 multifunction devices and 500 fax pages per device and month.
Replace the fax server infrastructure you manage yourself with innovative cloud fax services. It’s what analysts have been recommending for years. And Retarus is making it possible for companies worldwide. The result: increased productivity, lower costs. From the very start, and up to 80% over the long-term.

Retarus Fax Services – Advantages at a Glance


Excellent transmission rate

Reduce your fax transmission failure rate by up to 10% and reduce the administrative costs involved in manually processing your faxes. Retarus' NeverBusy Technology ensures that multiple faxes are never sent to the same recipient simultaneously. Thanks to this technology, even high volumes of incoming faxes are delivered immediately—no busy lines or capacity bottlenecks.


Intelligent routing

Achieve up to 30% more throughput with Retarus Cloud Fax using our cloud fax API. Active Carrier Management in the Retarus Messaging Platform automatically uses the lines and carriers whose line quality and availability best match your fax job. With Retarus you can also send your fax from any application - quickly and reliably.


Scalable and flexible

Eliminate over- and under-utilization of capacity with our online fax solution and API. Regardless of whether you send 1,000 faxes today and one million tomorrow—the Retarus Enterprise Cloud provides you with the exact bandwidth you need at any given point in time without a single fax machine or traditional desktop-fax software in your office.


Highly available and global

Rely on reliable transmission worldwide. Retarus offers high availability and high capacity, with its own data centers in Europe, Asia, and the USA, providing maximum availability and delivery reliability. 24/7.


OCR and barcode recognition

Retarus Cloud Fax enables you to seamlessly integrate faxing into your workflows. Read out information or barcodes from incoming documents with the OCR and barcode recognition feature and then use customized smart routing options to presort, forward, store, or process the documents automatically according to your rules.


Perfect integration

Whether you use an ERP, a CRM or a legacy system, Epic, Microsoft 365, or Google Workspace — thanks to open standards, you can connect Retarus Cloud Fax to almost any business or cloud application. For example, via RESTful-API web service or via standard interfaces and protocols such as SMTP, SFTP, and HTTPS.


Monitoring and analysis

Check the status of your fax communications at any time using dashboards and detailed reports in the web-based Enterprise Administration Services Portal (EAS). In real time or in user-defined periods. For both outgoing and incoming faxes.


Transparent costs

Reduce your investment and process costs. Retarus lets you massively reduce or completely eliminate costs for telephony and fax infrastructures, software, updates, administration, and maintenance. Retarus' billing models are based exclusively on usage-related batch and page prices (pay-per-use).


Security and compliance

Rely on maximum security. With its global data centers, Retarus fulfills the most stringent country- and industry-specific requirements for data protection and data security including ISAE 3402 Type II and PCI DSS certifications, HIPAA and GDPR compliance, and many more


PGP and X.509 encryption

Ensure highly secure online faxing communications. Connect to the Retarus Messaging Platform exclusively via encrypted connections (TLS, VPN). Cloud Fax will also sign and encrypt incoming fax documents for you upon request—depending on the file type per AES 256-bit, PGP, or X.509.


Long-term archiving

Ensure full compliance with industry-specific or statutory regulations. Retarus' long-term archiving helps your fax communications comply with the most stringent data security and integrity requirements.


Enterprise-level SLAs

It doesn't matter if you are an international enterprise, a mid-sized company, or a startup. Choose the service level agreement that best meets your needs in terms of quality, support, and response time. We offer customized SLAs to guarantee special requirements, for example, the exclusive processing of your data in a specific Retarus data center.


Telephone number service

Receive faxes anywhere in the world with local numbers. Retarus provides service and call numbers on all continents that can be managed and assigned easily via a web-based administration portal (EAS). Additionally, porting existing fax numbers is possible at any time.


Service and support

Experience first-class support built on our expertise. The Retarus Service and Support Team is here to help you solve problems, answer your questions, or help you find the right solution for your needs. Anywhere in the world. You can even be assigned a personal service manager upon request.

Server vs. Cloud Services

Why Fax Server Replacement Is the Strategy to Choose!

On-Premises Fax Server

Retarus Cloud Fax Services

Capital Investment

Ongoing investment in fax machines, server hardware and software necessary. Including: hardware refreshes, software updates, telecom investments, disaster recover / failover implementations, capacity to scale No additional investment. Business continuity ensured with multiple in-region data centers (US, EU, APAC). With Retarus Cloud Fax Services, no hardware or software needed. No telecom investment needed

Data security

Depends on the company’s implementation of data protection policies Comprehensive data security including technical and administrative control mechanisms to protect customer data and meet regulatory requirements

Reliability Security

Investment in availability and disaster recovery management is required No additional investment; maximum availability and disaster recovery management are included in the service

Quality Management

IP environments are difficult to manage, resulting in partial deliveries, lower quality resolution, and lower throughput, among other challenges Services are optimized with proprietary delivery technology to ensure highest delivery quality and delivery rates in the industry


Limited to the existing hardware and telecommunication connectivity Send and receive faxes as your business needs it. On-demand capacity covers peak-load periods and growth


To safeguard error-free operations permanent monitoring, internal support and administration are required. 24/7 support; permanent monitoring of all online fax services

Total Cost of Ownership

High – CAPEX, maintenance, telecom, personnel, compliance/data security processes, administration, certifications, and more Cloud based fax solutions cause significantly lower costs compared to standard infrastructure deployment

What’s the Next Step?

Complete the form below to speak with our experts about switching to a fax service.