Digital Communication for the Business of Tomorrow
Ensure communication with customers and suppliers, modernize messaging infrastructures, automate manual business processes—with Retarus’ intelligent cloud platforms you can secure your communication today for the business of tomorrow.
The Email API for Successful Customer Relationships
Create excellence throughout the customer journey—Retarus’ Email API allows you to send transactional emails with the world’s fastest platform. Directly from your business applications and ecosystems. Up to ten million emails per hour with maximum deliverability and reliability. 100% in compliance with data protection regulations such as the GDPR.
Keep Your Processes and Supply Chains up and Running Even during Downtimes
An email infrastructure failure can very quickly result in supply chain disruptions. Quite often, it even causes a complete business interruption. Make therefore sure to secure your communications with Retarus, so that your company stays productive even if your own email infrastructure is unavailable.
Engelbert Strauss Relies on Retarus’ IDP Solution
Engelbert Strauss captures orders received via email with Retarus’ IDP solution. Deciding factors for the introduction were the small amount of time needed for implementation as well as the convincing recognition rates achieved by using AI. As a result, the world’s leading manufacturer of workwear, utility clothing, and personal protective equipment has significantly accelerated its ordering processes.
Lower Your Costs by Digitizing Ordering Processes
Retarus WebConnect for Suppliers allows you to integrate B and C suppliers (who do not use EDI) directly into your supply chain. Use our interactive calculator to find out how much this could save you.
Radicati’s “Secure Email – Market Quadrant 2025”
Retarus is positioned as Top Player, delivering “an attractive portfolio of email security capabilities in an efficient cloud-based solution that meets the needs of customers of all sizes.”
Now available – Retarus Enterprise Fax Portal
Retarus’ new Enterprise Fax Portal allows employees to send and receive faxes anywhere and anytime without any additional hardware, software, or email access.
Retarus is ISO 27001 certified
The communication services offered by Retarus have now also been certified in accordance with ISO 27001 (DIN EN ISO/IEC 27001:2017). For our customers, the certification once again affirms that their data is always in safe hands with us.
Upcoming Events & Webinars
Retarus Worldwide, On the Spot:
Event
Topics
Location
CoTer Numérique
Email Security
Clermont- Ferrand (FR)
Procurement Summit 2025
BI-Solutions for Procurement, Sales, Finance, Supply Chain
Hamburg (GER)
DSAG-Jahreskongress 2025
FAX, SMS, TEM, ECO
Bremen (GER)
EDI Day
EDI
Höhr-Grenzhausen (GER)
it-sa 2025
Email Security
Nürnberg (GER)
BME Symposium Einkauf & Logistik 2025
BI-Solutions for Procurement, Sales, Finance, Supply Chain
Berlin (GER)
On Demand Webinars
Munich // May 06, 2025
Retarus Achieves HITRUST 1-year (e1) Certification, Underscoring Leadership in Secure Cloud Fax for Healthcare
Retarus, a leading international provider of secure and high-performance communications for business-critical processes, has earned certified status by HITRUST for foundational cybersecurity. The globally recognized HITRUST e1 Certification validates that Retarus’ U.S.-based fax [...]
Munich // Apr 29, 2025
Keller & Kalmbach automates inbound invoices with Retarus Intelligent Document Processing
Keller & Kalmbach, global specialists in the field of fasteners and fastening technologies, has automated the processing of inbound invoices with Retarus’ SaaS solution, Intelligent Document Processing (IDP). Replacing the company’s previous OCR solution, Retarus’ innovative [...]
Munich // Apr 02, 2025
Retarus Achieves “Top Player” Position in Radicati’s “Secure Email - Market Quadrant 2025”
Retarus has been positioned as a “Top Player” in the latest Radicati report, “Secure Email - Market Quadrant 2025.” According to analyst firm Radicati Group, this positions the company among the market leaders in terms of feature breadth, innovation, and strategic vision.[...]
Recommended by the Best
From digitization and automation to cloudification and security—find out how Retarus’ cloud services help companies around the world become more successful.
Recognized by leading Analysts
Find out what renowned analyst firms such as Gartner, Forrester, Radicati, and KuppingerCole have to say about Retarus’ platforms and cloud services.
Why Retarus?
41% of S&P Global 100 companies
71% have worked with us for over 5 years
62 Net Promoter Score (NPS)
7 Data Centers
2800+ servers
4.8/5.0★ on Gartner Peer Insights
10+ million emails per hour
Insights
For seamless SAP processes
Make your SAP applications or applications connected to the SAP cloud communicate via the Retarus Enterprise Cloud. With customers, suppliers, and partners. Via email, fax, SMS, or EDI. Incoming and outgoing. Securely, compliantly, and transparently. And in an auditable, scalable, and calculable way.
Cloudification with Retarus
From the digital workplace to process communication along the supply chain— modernize and consolidate your messaging infrastructure with Retarus Cloud Services for email, fax, SMS, and EDI. Ideally paired with Microsoft 365 and business applications such as SAP and Salesforce. 100% GDPR-compliant and open for individual customer requirements.
Digital Transformation with Retarus
Digitize and automate manual ordering processes, close digital gaps in supply chains, automatically convert unstructured data into structured data—no matter which are the goals on your agenda: When it comes to digitizing and automating communication processes, Retarus is the right choice.
For IT admins and integration partners
Do you need technical information about our products, user or admin guides, step-by-step instructions, or a how-to tutorial? The Retarus Product Documentation Center provides helpful information as well as guides and quick start info for the easy integration of our cloud services into your company.
What’s Next?
Get
Started Now!
We support you in making your business communications more efficient and secure. With cloud services that enable the reliable exchange of information. For people, applications, and machines. 100% GDPR-compliant. With outstanding quality and first-class service. And with great people. To support you anywhere in the world. When will we meet?