Ensure Email Keeps Running – Even During Outages

Q: Where can I find more information about the solution?

Check out our customer stories , analyst reports and corporate blog . Stay informed about upcoming events and webinars – or book a demo . We are happy to help.

Stay operational – even when your email infrastructure fails. Retarus Email Continuity keeps your communication running seamlessly.

Active backup, always available

Flexible, secure access via webmail – from any device, any location. Ready to switch instantly if your email system fails.

Access via webmail service

Familiar usability, just like popular email services – no time-consuming onboarding for your employees. Instantly ready for use.

Smart solution for your business needs

Retarus Email Continuity works hand in hand with Retarus Security, Archive, and Encryption – for end-to-end protection from a single provider.

The Retarus Advantage

Continue working undisrupted

Stay connected during outages – with secure access to contacts and email threads via Active Directory sync.

No dependency on Exchange

Keeps running even if Microsoft 365 or on-prem Exchange fails – or is hit by a cyberattack.

Compliant and secure

Compliant emergency solution. No data export, no client synchronization. Your sensitive data stays protected.

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

Features

Access email anytime, on any device

Integrated company address book

Customizable interface

Email history

Email access made easy – via an intuitive webmail interface, on any device, anytime, anywhere. Responsive design ensures full functionality wherever and whenever, meaning that your employees are available and able to respond without requiring any additional training or installations.

Automated integration of the company’s own address book ensures that all internal and external contacts always remain reachable. Practical search functionality makes it easy to access contacts and distribution lists.

Customize the interface to match your brand. With support for more than 80 languages, the UI automatically adapts to each user’s browser settings.

Users have optional access to the e-mail history of the last few days via the webmail system – to ensure continuous work even in an emergency. Access is exclusively via the secure webmailer. End users cannot export data or synchronize it with local e-mail clients. This guarantees security and data protection.

Retarus Email Security: The European Advantage

Full-Service Cloud Offering

Email without boundaries between workplace, infrastructure or applications. Flexible enough to add solutions anytime based on your specific needs and budget requirements.

Truly European, No Compromises

Headquartered in the EU, we guarantee legally compliant, local data processing – without access by non-European authorities, without "kill switch", without compromises.

Enterprise Expertise Since 1992

With over 30 years of experience, we are among the pioneers of email security. Leverage our expertise – also for complex challenges around your email infrastructure.

Real People, Real Support

Direct line instead of a call center. Dedicated contacts and qualified support experts in your local national language – reliable, available, committed.

What's Next?

Book an appointment now!

Is your company subject to NIS2 or DORA? Let’s talk – we’ll show how you can communicate securely – even in crisis situations.

Contact us

Looking for technical details?

Visit our Product Documentation Center for technical specs, data sheets, and product insights.

Find out more

Looking for more details?

Free white paper

Gain deeper insights in our white paper: “How to Keep Your Email up and Running during an IT Outage”

Find out more

Product Details, Manuals and More

Find data sheets, manuals, and technical specs in our Product Documentation Center

News, Trends and Insights

Stay informed on industry trends and product developments via our corporate blog

Frequently Asked Questions

Are there any special prerequisites for mobile use of the service?

No. You can access the Continuity webmail accounts on any mobile device with a browser. No additional apps or system changes are required.

Will the continuity service affect my regular infrastructure?

No. The Continuity service runs completely independently. Tests, activations, and failover events do not interfere with your regular operations.

Are there other use cases apart from failover scenarios?

Yes. You can also use the service to assign company email addresses to employees – without giving them access to your critical internal infrastructure.

Where can I find more information about the solution?

Check out our customer stories, analyst reports and corporate blog. Stay informed about upcoming events and webinars – or book a demo. We are happy to help.