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.
The 2022 Gartner® Market Guide for Intelligent Document Processing Solutions
IT analyst Gartner® has published its first “Market Guide for Intelligent Document Processing Solutions” (IDP). Automating manual steps in document processing, increasing process efficiency, reducing costs—this market guide provides an overview of the global IDP market in which Retarus plays an important role with its Intelligent Capture Services cloud solution.

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.
On the Radar: Retarus Secure Email Platform
IT analyst firm Omdia took a close look at various email services. Find out why you need to have Retarus Secure Email Platform on your radar for securing your communications. As a complete solution or as a supplement to Microsoft 365/Teams, Google, Salesforce, or SAP.


Transactional Emails with No Limitations
Go beyond the limitations of Microsoft 365 when sending transactional emails. With Retarus you can send up to ten million emails per hour from your business applications thanks to a CSA-certified, high-performance cloud infrastructure. Contractually guaranteed and with maximum reliability.
Small Message, Big Impact
Authenticate, confirm, remind, warn, inform—with Retarus’ Cloud SMS Services you can guide your customers through every stage of the customer journey. From all applications into all networks—simply, fast, and directly.

Upcoming Events & Webinars
Webinar Recordings
Munich,20.01.2023
Retarus facilitates secure voting in digital elections
POLYAS, a market leader in online elections, now sends out electronic ballot documents using Retarus’ Transactional Email. The Munich-based enterprise cloud service provider ensures that the authentication via email for digital voting meets the strict security requirements of [...]
Munich,17.01.2023
Milan’s Università Cattolica del Sacro Cuore has opted for Retarus for a more secure email system
The Università Cattolica has chosen to collaborate with Retarus – one of the main international providers of Enterprise Cloud solutions for Messaging, E mail Security, and Business Integration – to mitigate cyber-related threats and risks: by adopting Retarus’ E Mail Security [...]
Munich,03.01.2023
Business Communication: Five Trends for 2023
From the war in Ukraine to supply chain crisis and deglobalization, economic systems are currently under considerable strain. Meanwhile, rising inflation and the prevailing shortage of qualified staff exacerbates the situation. To ensure their businesses can continue running [...]
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
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.

By Developers for Developers
Do you need API references, code snippets, or a how-to tutorial? The Retarus Knowledge 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?
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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?