Email Security for Companies – Protection for your Business
Microsoft 365 & Exchange
Proxmox Mail Gateway
Secure Microsoft 365 & Exchange Configuration
Microsoft 365 enables flexible working in the cloud, while a local Exchange server offers maximum control over data and systems. Through secure gateway configurations, role-based access, and integrated protection mechanisms, your communication remains reliably protected.
Your benefits at a glance
Holistic email protection. Integrated. Scalable. Automated.
All components interlock – email filtering, firewall, endpoint security, and configuration as one system.
Integrated Security Solutions
Email filtering, firewall, and endpoint security interlock – for consistent protection without gaps between systems.
Grows with your company
Cloud-native architectures and automation ensure that the solution grows flexibly with your requirements – without system changes.
Stable IT through automated processes
Centralized management and intelligent filters reduce manual effort, minimize misconfigurations, and increase system stability sustainably.
Email filtering with Proxmox Mail Gateway
Scalable Email Security
Cloud-native architectures (Microsoft 365, Exchange Online, Google Workspace), Policy-as-Code, automated rollouts, and telemetry for growing email infrastructures.
Central Control & Intelligent Quarantine
Suspicious emails are automatically moved to quarantine and can be managed centrally and released specifically if necessary.
Proactive Attack Detection
Modern filters detect spam, phishing, and malware in real time and stop threats early – before they reach your system.
High Deliverability & Compliance
Optimized configuration (SPF, DKIM, DMARC) improves delivery, protects against spoofing, and meets legal compliance requirements.
Email Security in the Cloud
For OpenStack & Microsoft Azure
Through secure gateway configurations, role-based access, and integrated protection mechanisms, your communication remains reliably protected.
Protection against fraud & data theft
Inadequately protected mail systems enable phishing, malware injection, and data theft – with significant financial and reputational damage.
MoreProxmox Gateway for OpenStack
In OpenStack environments, dedicated mail gateways like Proxmox Mail Gateway are used – flexibly integrated and tailored to individual requirements.
MoreDefender for Office 365
In Microsoft Azure, Microsoft Defender for Office 365 and other cloud security services are used – ideal for companies with a cloud-first strategy.
MoreManaged Email Security – All Services at a Glance
Proxmox Mail Gateway
Microsoft 365 Security
Exchange Server
Anti-Phishing & Anti-Spam
SPF / DKIM / DMARC
Cloud Email Security
Quarantine Management
Monitoring & reporting
Book a call with us
Request email security consulting
Gabler Systemtechnik GmbH
Scheidegger Strasse 8
81476 Munich
Start email protection!
Wie schützt Proxmox Mail Gateway vor Spam und Phishing?
Proxmox Mail Gateway filtert eingehende E-Mails in Echtzeit auf Spam und Malware; bekannte Phishing-Muster werden über SpamAssassin-Regeln und ClamAV-Signaturen erkannt. Verdächtige Nachrichten landen automatisch in der Quarantäne, die zentral verwaltet und bei Bedarf freigegeben werden kann.
Muss Microsoft 365 zusätzlich abgesichert werden?
Ja. Microsoft 365 mit Defender for Office 365 bietet Basisschutz, muss aber für den Unternehmenseinsatz sorgfältig konfiguriert werden: sichere Gateway-Konfiguration, rollenbasierte Zugriffsrechte, SPF/DKIM/DMARC und Multi-Faktor-Authentifizierung. Gabler Systemtechnik übernimmt diese Absicherung vollständig.
On-Premise Exchange oder Microsoft 365 – was ist die sichere Wahl?
Beide Optionen sind sicher, wenn korrekt konfiguriert. Exchange Server bietet maximale Datenkontrolle, ideal für datenschutzkritische Umgebungen. Microsoft 365 punktet mit Cloud-Flexibilität und integrierten Sicherheitsfunktionen. Gabler Systemtechnik berät individuell und betreibt beide Varianten GDPR-compliant.