Email Proxy for Encrypted Communication: Retarus SMTP Concentrator
Simplify complex application landscapes and disparate systems, reducing complexity and improving reliability.
Entire Email Landscape Simplified
Onboard and manage a multitude of internal and legacy applications all in one place. Ensure optimum reliability across your connected applications.
Gain Back Control
Get a total view of all applications that are connected, all centrally managed. Mitigate shadow IT. Understand and optimize data flow for better deliverability.
Secure, Compliant, Protected
Experience enhanced security with enforced authorization and authentication. Easily manage compliance and fully secure email with TLS-encrypted SMTP.
The Retarus Advantage
Easy Deployment
Authentication Options
Zero Data Persistence
Customer Ratings and Reviews
“Retarus reacted swiftly to our enquiry, understood our needs and professionally implemented the project within a very short space of time.”
Read customer story Patrick Brandner, Application Hosting Service Delivery Manager, Solvay SA
“The collaboration with the team at Retarus was uncomplicated, and within a few weeks we had access to the interface from the Swiss data center. The integration was extremely easy for my team.”
Read customer story Riccardo Trombini, CTO, Starmind AG
“Like samedi, Retarus places great importance on data protection and compliance. Modern programming interfaces made it easy to integrate the services into our platform and they were up and running quickly and reliably.”
Read customer story Michael Siebert, Chief Principal Engineer (CPE), samedi GmbH
“Retarus and Symtrax provided us with a turnkey solution, so that we could immediately test it under real production conditions. Within two days the service was ready to use productively.”
Read Customer Story Jean-Michel Brégeat, Head of Sales, Aigle
Features
Easily onboard as well as modernize and manage legacy applications while enforcing robust authentication and compliance controls.
Reduce risks and enable better compliance by ensuring authentication and encryption is effectively used across the entire email landscape.
Docker containers are built to be highly available and scalable, increasing performance while reducing operational efforts and lightening infrastructure resources.
Docker containers are built to be clustered; connect as many as needed, no matter where they are located worldwide. Process 15,000+ emails per minute per container.
Gain Control over email traffic with an inventory of all authorized legacy applications for future upgrades and migrations.
Why Choose Retarus Transactional Email?
Highest Throughput Rates
Advanced Reputation Management and Beyond
- Unparalleled inbox placement (average sender score = 99, industry average is 85). Dynamic IP routing according to sender domain, CSA certification, bounce management. SPF, DKIM and DMARC implementation to maintain a high inbox placement.
- Convey trust, confirm email authenticity, and increase email acceptance with Messaging Signing.
Auditable Data Centers
- Data centers in the United States, in Europe and in the APAC region
- Retarus’ data centers are self-operated, self-sufficient, and redundant
- No hyperscalers, local data processing available
- Multi-client capability thanks to multi-domain configuration. Failover and load balancing options available
- All data centers are operated according to the latest standards and fulfill strict requirements: EU GDPR, HIPAA, Sarbanes-Oxley, or PCI DSS, CAN-SPAM, TISAX
Fast Implementation
- Our experienced team handles every detail of onboarding and go-live.
- Devoted service management makes sure you get the most out of your email.
Real People, Real Support
- No call center nor chatbots
- You get experts who know what they are doing
- We become part of your team from scope, migration, production and Go-live
Bolster Communication with Transactional Email Add-ons
Trace and Recover
Enable employees in the service or contact center to quickly find and resend lost transactional emails without having to access the business application that sent them.
Read moreMessage Signing
Digitally sign emails sent from your SAP system. The digital signature ensures confidentiality, integrity and authenticity, providing an additional layer of security.
Read moreAntiVirus Multiscan
We check your outgoing messages with the virus scanners of our proven Retarus Email Security. If a virus is found, our solution deletes the infected email and you immediately receive all status information on infected emails.
Read moreDelivery Reliability Features
With the suppression list, you can prevent the resending of an email to a recipient who is unreachable for various reasons. With the Retarus IP Allowlisting feature you explicitly define which applications in your network are allowed to use the Transactional Email Service.
Read moreReporting
The Enterprise Administration Service portal (EAS) gives you full control over your company's e-mail traffic. Track emails being sent live and access the status of each individual email.
Read more
Get in touch
Want to learn more or see our solution in action? Reach out to your preferred or contact us directly to book a demo.
Learn more
Check out our documentation center to find technical information and product guides.
Want to Find Out More About Retarus Transactional Email?
Transactional Email in Action
See how Retarus’ high-capacity, powerful Transactional Email improves business communication
Transactional Email in Detail
Interested in understanding our products in more depth? Check out our Product Documentation Center
Corporate Blog
Read about product developments, market news, and other updates from Retarus
Frequently Asked Questions
Is there documentation available about compatibility and feature details?
Yes. Retarus Transactional Email supports numerous types of business applications and has a rich feature set. Detailed feature overviews and documentation can be found here.
Is the implementation of transactional email difficult?
Not with Retarus. Enterprises often have complicated requirements or critical processes that cannot be interrupted, but we have experience from thousands of successful migrations and onboardings with many of the world’s leading companies.
Where can I find out more?
Visit our Transactional Email 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.