Your emails, your rules, your control

Organize your entire email workflow according to your rules. For sending and receiving faxes - use the Retarus Policy Engine.

Intelligent e-mail routing

Control incoming and outgoing messages how you see fit – individually, rule-based and in real time.

Adapt content dynamically

Analyze and modify subject lines, headers and bodies for automated processes.

Sender and domain management

Customize technical and visible senders and domains flexibly – without interfering with the infrastructure.

Comprehensive rules, simply implemented

Set rules on the gateway

Intervene directly at the Secure Email Gateway – with more control options for inbound and outbound.

Complex rules without code

Create sets of rules using the editor – without any programming, quickly and intuitively.

Rules for each use case

Define individual rules – flexibly combinable from conditions and actions.

What Our Customers Say

“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

Typical use cases

Inbound rules - infrastructure control

Inbound rules - IT security

Inbound rules - workflow automation

Outbound rules - domain and brand management

Do you want certain emails to be delivered directly to internal systems or applications instead of to mailboxes? No problem: route messages automatically to business applications. Based on sender, IP, headers or recipient.

Respond flexibly to current threat situations – with geo-blocking or individual quarantine rules. Combine Advanced Threat Protection with company-specific policies for targeted protection.

Optimize your workflows with automatic processing: automate the delivery of emails based on language, content or metadata and automatically forward messages to specialist departments or branch servers. Subject lines can also be automatically adapted or tagged.

Maintain a uniform sender image across all company divisions – even with rebrandings, mergers & acquisitions or complex group structures: rewrite “Envelope From” and “Display From,” automatically and rule-based, without manual intervention or changes to the infrastructure.

Retarus Email Security: The European Advantage

Complete, flexible cloud offering

Email without boundaries between workplace, infrastructure or application. At the same time, it is so flexible that you can add solutions at any time to suit your needs and budget.

Genuinely European, without compromise

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

Enterprise expertise since 1992

With over 30 years of experience, we are one of the pioneers of e-mail security. Take advantage of our expertise - even for complex challenges relating to your e-mail infrastructure.

Excellent service

A direct line instead of a call center: Personal contacts and qualified support in your national language - reliable, accessible, committed.

Your Next Step

We are here for you!

Do you have questions about Retarus, our products and services, or wish to receive further information? Your personal sales representative will assist you with any inquiries.

Contact us now

Would you like to find out more?

Product information, manuals and more

All details on configuration and use in our Documentation Center.

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Compliance with Retarus

We support you with data protection, audit obligations and regulatory compliance.

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What analysts say about Retarus

Read how leading analysts rate our solutions and our market position.

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News, trends and insights

Stay up-to-date with the latest industry and product developments with our corporate blog.

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Frequently asked questions

Is the solution multi-client capable?

Yes, you can manage several clients, organizational units or customers separately - including role-based assignment of rights and delegated administration.

Is there help with rule creation – without risk to e-mail traffic?

Yes, our support team and Retarus partners will be happy to assist you in creating rules - with proven best practices that have no impact on productive operations. This allows you to implement policies securely and efficiently.

Why are local or e-mail server policies not enough?

The earlier you start, the more effective your rules will be. Local policies - for example in Microsoft 365 - quickly reach their limits, especially in outbound scenarios, with attachments or when contextual control is required. The Retarus Policy Engine significantly expands these possibilities.