Self-learning detection
Continuous learning from billions of emails. Detects new attack patterns in real time - including zero-day threats.
groupios On Premises – Email Security Gateway
It's not your spam filter that protects your company. It's the emails that never reach you.
Today, cyberattacks almost always start with an email. We stop compromised emails before they reach your company.
Why companies get hacked despite having a spam filter
We don't just filter emails. We prevent cyberattacks.
The groupios Email Threat Protection
Multi-layered, enterprise-grade protection - before unwanted emails reach your infrastructure.
Multi-layer filtering
Spam, malware, phishing, ransomware, reputation, anti-virus.
Intrusion prevention system
Potential blocking of zero-day attacks. Blocks malicious traffic immediately and autonomously.
Authenticated communication
DKIM, SPF, and DMARC protect against spoofing and sender manipulation.
S/MIME integration
Central certificate management and encryption directly at the gateway.
Email security architecture
No email storage, no mailboxes, no copies - maximum security and minimal attack surface.
The modern worker system - high availability doesn't start at the server. It starts at the gateway.
A platform that gives you unrestricted control over the security of your email communication.
92% of all cyberattacks start with an email. Business crises begin the moment these emails arrive.
Business crises begin the moment these emails arrive.
Three ways to groupios - your decision
One platform. Two deployment models. Make your decision.
You choose the deployment model for your email security. Either way, you benefit from the same proven technology in two flexible options.
Whether you prefer maximum self-control in your own data center or a convenient operation through the groupios Mare Cloud - the groupios Email Security Gateway gives you a unified security architecture, integrated protection mechanisms, and a consistent user experience.
You decide which deployment model best fits your organization's requirements.
Why companies, public authorities, and municipalities choose groupios
Made in Germany
Development, operations, and support in Germany.
GDPR-compliant
Full control over your data - no data leaks, no surprises.
No cloud dependency
Operated in your own infrastructure, your data center, or by a trusted MSP partner.
Maximum control
You decide where your data is processed and protected.
Modern architecture
Worker system for maximum availability, scalability, and resilience.
Personal support
Support from your trusted systems house or MSP partner.
The most important questions before an investment decision….
Why is a separate email security gateway needed if Microsoft 365® or a spam filter is already in use?
Modern cyberattacks increasingly bypass conventional spam filters by exploiting legitimate communication channels, compromised accounts, or previously unknown attack patterns. The groupios Email Security Gateway performs a multi-stage analysis of incoming messages before they reach your mail infrastructure. This allows threats to be detected and rejected early - regardless of whether you use Microsoft 365®, Exchange, Postfix, or other mail servers.
How does the gateway minimize my business risk?
A successful email attack today can have far-reaching consequences beyond pure IT damage - for example production outages, data loss, reputational damage, legal consequences, and loss of customer trust, which can have significant economic impact. The groupios Gateway therefore follows a proactive security approach: attacks are detected and stopped early, before they reach users or mail servers. This significantly reduces operational risk.
Is the groupios Email Security Gateway suitable for public authorities, critical infrastructure operators, and regulated industries?
Yes. The groupios Email Security Gateway was specifically developed for organizations that must meet the highest requirements for data protection, information security, and digital sovereignty. It operates fully on-premises or in a controlled infrastructure, so companies, public authorities, and municipal IT service providers always retain full control over their communication data.
Why is the gateway's architecture more secure than conventional security solutions?
The groupios Gateway acts as an SMTP proxy with no mailboxes or email archiving of its own. It processes emails only during transmission and leaves behind no additional data stores. Combined with a redundant worker architecture, this results in a particularly small attack surface alongside high availability and a maintenance-friendly structure.
What strategic value does the groupios Email Security Gateway offer our organization?
The gateway is more than a pure security measure. It’s an integral part of a sovereign IT strategy and gives your company, authority, or municipality full control over email communication. It also helps reduce dependency on external cloud services, makes it easier to meet legal and regulatory compliance requirements, and helps build a highly available, scalable security architecture.
Mare Cloud brings all security solutions together in a single platform.
Combine our various building blocks for maximum data sovereignty.
Email Security Gateway
Protection from spam, malware, and ransomware – with automatic S/MIME encryption and central certificate management.
Discover the gatewayS/MIME Encryption
Legally compliant S/MIME encryption with central certificate management – automated, with no effort for users.
Discover encryptionEmail Archiving
Audit-proof archiving compliant with GDPR and GoBD – legally compliant long-term storage for all your previously encrypted emails.
View archivingCloud2Cloud Backup
Completely vendor-independent backup, for example of Microsoft 365®, OneDrive®, Teams®, SharePoint®, Gmail®, and Google Drive®.
View backup solutionMulti-Node Backup
Maximum resilience through distributed backup architecture with no central point of failure – ideal for business-critical data, for example.
Discover the backup strategyCast off now!
Set your course in 30 seconds.
Simply fill out the form to get started - we usually get back to you within one business day with a concrete offer or an appointment for your personal consultation.
- 30-day free trial - no risk
- No contract, no minimum term
- Server locations exclusively in Germany
- Response usually within one business day
- Personal point of contact, not a call center
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