A Security Boost for Your Emails via API
Increase the protection of your Microsoft 365 and other cloud environments – integrated seamlessly with our ICES connectors for maximum email security.
Security from Experts
More Data, More Protection
Running Hybrid Solutions?
Use our e-mail security as a gateway even, in more complex environments!
Smart Integration with Native APIs
Customer Ratings and Reviews
“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
“In Retarus we have found a dependable partner for our email communications. Thanks to their reliable and innovative solutions, we are very well protected against any threats, both now and in the future.”
Read customer story Stefan Hopf, Head of Messaging and Collaboration, Continental AG
“Retarus Email Security is highly reliable and provides excellent detection rates.”
Read customer story Kurt Walther, Director Global IT and Business Intelligence, Puma AG
“Retarus is now so established at medbo that we simply think of you first whenever it comes to email. We get the impression that you all know what you’re doing.”
Read customer story Jürgen Schmalzbauer, Data Center Manager, medbo
“In a few words : The service works fine. It's easy to maintain and nearly self explaining. Our users are very pleased with Retarus. ”
Read full review Consumer Goods, IT
Benefit from Perfectly Fitting Add-Ons for Your Cloud Email Environment
Spotlight on Our APIs!
Certified. Tested. Reliable.
Our services meet the highest standards. That’s not just a promise – check out our certifications.
Support That Really Helps
Even the best API may need support. That’s where we come in – in person, direct, as partners.
Let’s Meet – At the Next Event
You will often find us at trade fairs and conferences – we’re looking forward to meeting you in person.
More APIs – More Options
Looking for APIs for cloud fax or enterprise SMS? Explore our powerful APIs.
Frequently Asked Questions
Do I have to deactivate my existing Microsoft 365 security features?
No. Retarus augments the security functions offered by Microsoft 365 by adding more layers of protection, for instance those offered in the ATP (Advanced Thread Protection) feature set as well as sandboxing. Find out more in our Product Documentation Center.
What is the advantage of API-based integration?
API integration allows protection to be enhanced immediately without requiring any changes to the infrastructure or MX records. It is especially suited to companies looking to keep their existing Microsoft 365 licenses but boost their level of protection. For hybrid or on-prem infrastructures, on the other hand, our Secure Email Gateway is recommended.
Does Retarus also check outbound emails for malware?
Yes. Using our outbound connector, Retarus can scan all outbound emails – allowing you to ensure that no malicious content is sent out. Your recipients and reputation remain protected. Find out more in our Product Documentation Center.
Do these comprehensive checks delay delivery?
No. Our email security conducts a wide range of checks in parallel on high-performance infrastructure operated by Retarus itself. In this way, we achieve exceptionally fast throughput times of only a few seconds.
How can I maintain an overview?
Through the Retarus myEAS web portal, administrators are provided with real-time information and total transparency about all email activities. This includes specified tracking points and forensic details at message level. On request, events can also be pushed to existing SIEM systems.
Do I need to integrate each of the Retarus modules myself?
No, we provide fully integrated solutions from a single source. All components and services mesh seamlessly, ensuring that no additional integration efforts are necessary.