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+49 611 711857-0
hallo@denkform.net
Dornkratz 1
65207 Wiesbaden Igstadt
Monday to Friday 8:30-13:30 and 14:30-17:00 (Friday until 15:30)
IT solutions for communication and security with GFI Software
With Kerio products from GFI Software, you can optimize your corporate communications and protect your IT infrastructure at the highest level. Kerio Connect, Kerio Control and Kerio Operator offer powerful unified communications, secure networks and flexible VoIP solutions.


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Secure and flexible email communication with Kerio Connect
Kerio Connect offers a powerful, cross-platform email, calendar and contact solution for companies. As an alternative to Microsoft Exchange, it enables simple and secure communication - whether via desktop, web or mobile devices. Thanks to integrated virus protection, spam filtering and automatic archiving, your email infrastructure remains reliably protected. With support for IMAP, CalDAV, CardDAV and ActiveSync, employees can access their data at any time and from anywhere. Kerio Connect is the ideal solution for companies looking for a secure and efficient e-mail and groupware platform.
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Comprehensive network security with Kerio Control
With Kerio Control, you can secure your company network with a powerful firewall and unified threat management (UTM) solution. It protects against cyberattacks and provides intelligent access control, VPN connectivity and detailed network monitoring.
- Deep Packet Inspection Firewall - ICSA certified
- VPN client & SSL VPN for secure remote access
- Integrated web filter & Sophos virus protection
- Central administration & QoS control
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IP telephony with Kerio Operator - the smart VoIP solution
Kerio Operator is a flexible IP PBX telephone system that combines VoIP telephony with advanced functions. Companies benefit from efficient communication with functions such as conference calls, call forwarding and voicemail-to-email. Thanks to simple administration via a web-based interface, extensions and users can be managed without the need for external IT specialists. Kerio Operator supports SIP-enabled telephones and softphones so that existing telephony systems can be easily integrated. A smart solution for companies that want to modernize and optimize their communication.

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Further IT solutions with GFI and Kerio Hosting
GFI offers comprehensive solutions for a secure and efficient IT infrastructure. GFI LanGuard detects vulnerabilities and provides up-to-date security updates. GFI MailEssentials protects emails from spam, phishing and malware. GFI Archiver enables GDPR-compliant archiving of emails, files and appointments, while GFI FaxMaker seamlessly integrates fax solutions into digital workflows.
With Kerio Hosting, you can use the functions of Kerio Connect without having to worry about maintenance or server operation - secure, reliable and available at all times.
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Your benefits with GFI and Kerio products:
- Comprehensive IT security
- Central communication & collaboration
- Audit-proof archiving & data protection
- Flexibility & scalability
- Simple administration & low maintenance
Downloads
FileMaker Go
FileMaker Pro Client
FileMaker Server
Frequently asked questions
How can I integrate GFI and Kerio solutions into my company?
GFI and Kerio products can be flexibly integrated into existing IT infrastructures. GFI LanGuard provides automated patch management and network security, while GFI MailEssentials protects your email traffic from spam and malware. Kerio Connect provides you with a powerful email and groupware solution that is seamlessly compatible with existing systems. Kerio Control provides comprehensive network security and VPN connectivity, while Kerio Operator provides a modern VoIP telephone system for efficient corporate communications. All solutions are available both on-premises and as hosted services.
How does Kerio Control support my company's network security?
Kerio Control offers a comprehensive firewall and UTM solution for companies. It protects networks with deep packet inspection, intrusion prevention system (IPS), VPN connectivity and content filtering. The firewall analyzes data traffic, blocks threats in real time and enables detailed user control. In addition, regular security updates and the integrated web filter ensure reliable protection against cyber attacks.
What functions does Kerio Operator offer for corporate communications?
Kerio Operator is an IP telephone system that provides companies with flexible and efficient VoIP communication. Features include call forwarding, voicemail-to-email, conference calls, queuing and call parking. It is managed via a user-friendly, web-based interface that enables quick setup and easy customization. Thanks to support for the SIP protocol, Kerio Operator is compatible with many VoIP phones and services.