A Better Customer Experience Driven with Superior Communication Technology
We deliver critical messages to the right place while giving customers transparency over business processes, fax, email, and SMS communications.
CX Does Not Compromise
Do not settle for second best. Choose Retarus to receive, process and send critical documents at scale. Secure, reliable and compliant.
One Vendor, All Relevant Channels
Engage with customers via their preferred channel and benefit from central reporting and administration for fax, email, SMS, or RCS combined.
Always the Best Connection
Choose between multiple connection methods as needed including MuleSoft, APIs, pre-built connectors, adapters and direct integrations.
Customer Ratings and Reviews
“We chose Retarus because they offered the most harmonized overall concept. In addition to the flexibility, speed and price-performance ratio, we were also convinced by their personal approach and the transfer of know-how.”
Read customer story Dominik Reichle, Channel Specialist EDI, Leuze
“We are delighted to have Retarus as a reliable and forward-thinking partner at our side.”
Read customer story Sales Project Management, Engelbert Strauss GmbH & Co. KG
“The system and process are stable – an order confirmation rate of more than 97 percent speaks for itself.”
Read customer story Ute Bätz, IT Operations, IT & Process Management , EagleBurgmann Germany GmbH & Co. KG
“Retarus has proven to be a reliable partner and has made a decisive contribution to the digital transformation of our accounting processes.”
Read customer story Anja Harms, Head of Accounting, Keller & Kalmbach
“Our mail users have no troubles with using the processes related to Retarus. Releasing spam, maintaining personal black- and whitelists and understanding the need of an antispam/antimalware protection.”
Read full review IT Services, Management / Business Consulting
Explore Our Solutions for Different Customer Experience Platforms
Deep Dive Into Our Integrations for CX and Other Applications
Everything You Need to Know
For product specifications, administrator manuals, API tutorials and more, see our documentation center.
Interact with Our Messaging APIs
Try out our APIs functionalities in a mock-server environment without any implementation efforts.
In Good Company
We partner with leading Microsoft Solution Partners, who implement our products into your processes.
Frequently Asked Questions
How does Retarus differ from native communication tools?
Unlike basic native tools, Retarus provides enterprise-grade messaging infrastructure with global delivery capabilities, advanced tracking, regulatory compliance, and 24/7 service monitoring. Our solutions extend your CX platform's capabilities with specialized business messaging expertise developed over 30+ years in the industry.
What type of integrations does Retarus offer for Salesforce?
Retarus offers multiple connection methods including MuleSoft, direct SMS integration, and SMTP adapters for fax, SMS, and email to automate customer notifications, document delivery, and communication workflows. Learn more in our Salesforce Integration Documentation.
How quickly can Retarus integrations be implemented?
Most Retarus integrations can be deployed within days rather than weeks or months. Our pre-built connectors for major platforms like Salesforce and Microsoft minimize development resources while our expert implementation team ensures smooth configuration and testing.
Can I send automated transactional messages through Retarus integrations?
Absolutely. Retarus integrations support fully automated messaging workflows triggered by events in your CX platforms. Whether it's appointment confirmations, billing notifications, or service updates, communications can be personalized and delivered through the customer's preferred channel.