Email security suite from Germany
Complete email security.In one platform.
Conbool combines defense against phishing and fraud, encryption, secure file transfer, central signatures and DMARC. All in one suite, hosted in Germany.
- ISO 27001
- GDPR & DPA
- Hosted in Germany
- Multi-tenant for groups & MSPs
Together with strong partners for secure email and reliable infrastructure.
What our customers say
The Conbool Suite won us over because it's the best turnkey email solution, one that flexibly adapts to our requirements.
Thomas KlockenkämperHead of IT · Asklepios Medical School

Five modules. One platform.
Spam protection, encryption, file transfer, signatures and DMARC. All in one console, with one audit log and one point of contact.
Encrypt emails, no training, no plug-in pain.
Send and receive confidential emails encrypted. Recipients need neither software nor certificate. They read the message in the secure portal.
- Automatic encryption by your rules
- Message portal for recipients without keys
- Outlook add-in: one click to encrypt
- GDPR- and NIS2-compliant audit log
Phishing, CEO fraud, malicious attachments: blocked before they land.
Multi-layer AI detection against the most common attacks. No extra hardware, no employee training required.
- Real-time phishing and spear-phishing detection
- CEO fraud protection with behavioural analysis
- Attachment sandbox against ransomware and zero-days
- Data loss prevention: stops accidental data leaks
Centralised email signatures: always current, consistent everywhere.
One template, all employees. Change marketing banners, legal disclaimers and layout centrally. Outlook and mobile sync instantly.
- Server-side signatures: no more outdated layouts
- Marketing banners with expiry date and audience
- Outlook add-in with live preview
- Active Directory and HR system integration
Send and receive large files securely, no FTP server.
Send multi-GB files with one Outlook click. Recipients download without an account. You see who accessed what and when.
- Multiple GB per file, straight from Outlook
- Secure inbox: external parties upload files to you
- Passwordless retrieval for recipients without an account
- Encrypted storage, hosting in Germany
DMARC reports made readable: spoofing protection without XML.
The only German-language DMARC platform with plain-text recommendations. See who sends mail in your name, and shut down spoofers in two clicks.
- Aggregated DMARC reports in plain text, not XML
- Step-by-step DNS guidance for SPF, DKIM, DMARC
- Alerts when suspicious senders impersonate your domain
- GDPR-compliant, hosting in Germany
Encrypt emails, no training, no plug-in pain.
Send and receive confidential emails encrypted. Recipients need neither software nor certificate. They read the message in the secure portal.
- Automatic encryption by your rules
- Message portal for recipients without keys
- Outlook add-in: one click to encrypt
- GDPR- and NIS2-compliant audit log
Phishing, CEO fraud, malicious attachments: blocked before they land.
Multi-layer AI detection against the most common attacks. No extra hardware, no employee training required.
- Real-time phishing and spear-phishing detection
- CEO fraud protection with behavioural analysis
- Attachment sandbox against ransomware and zero-days
- Data loss prevention: stops accidental data leaks
Centralised email signatures: always current, consistent everywhere.
One template, all employees. Change marketing banners, legal disclaimers and layout centrally. Outlook and mobile sync instantly.
- Server-side signatures: no more outdated layouts
- Marketing banners with expiry date and audience
- Outlook add-in with live preview
- Active Directory and HR system integration
Send and receive large files securely, no FTP server.
Send multi-GB files with one Outlook click. Recipients download without an account. You see who accessed what and when.
- Multiple GB per file, straight from Outlook
- Secure inbox: external parties upload files to you
- Passwordless retrieval for recipients without an account
- Encrypted storage, hosting in Germany
DMARC reports made readable: spoofing protection without XML.
The only German-language DMARC platform with plain-text recommendations. See who sends mail in your name, and shut down spoofers in two clicks.
- Aggregated DMARC reports in plain text, not XML
- Step-by-step DNS guidance for SPF, DKIM, DMARC
- Alerts when suspicious senders impersonate your domain
- GDPR-compliant, hosting in Germany
Secure email communication in minutes instead of days.
Conbool is optimized for speed. Minimal manual effort and no complex setup. Connect your domain and start secure communication immediately.
Security & compliance
Proven security. Complete compliance
One complete audit log across all modules. GDPR-compliant, ISO 27001 certified and verifiable at any time.
Permissions & access
Intuitive management and maximum control for teams of any size
- Multi-provider access (Azure & Google)
- Role based access control (RBAC)
- LDAP, Active Directory, and Entra ID integration
- Multi tenant capable for customers and sites
End-to-end transparency
Control security standards and mail flow anytime with minimal effort
- Traceable mail flows and processing
- Extensive audit log and reporting
Compliance out of the box
Communicate in a privacy compliant and legally secure way. 100% made in Germany
- EDIFACT compliant for the energy sector
- Compliance with GDPR and critical infrastructure requirements
- NIS2 ready and aligned with BSI (made in Germany)
More than software
There's a conviction behind Conbool.
No company should have to give up control over its most confidential communication just to be secure. That's the reason we exist.
See for yourself
Experience secure email communication in a practice now
No credit card required - 30 days free - Cancel anytime
Finally easy email encryption.
SecureMail: Encryption that doesn't get in the way.
Enterprise-grade email encryption with S/MIME & PGP. Protect your communication with automated certificate management and seamless gateway integration.
Automated Encryption
Internal and external communication is encrypted fully automatically via S/MIME or PGP.
No complicated key exchange: Conbool handles the finding and assignment of certificates.
Central Key Management
Automated request and renewal of certificates (S/MIME) directly at the CA.
Central dashboard for managing all PGP keys and S/MIME certificates.
Maximum Compatibility
Seamless integration into your existing mail flow (M365, Exchange, Google).
No local installations: The encryption happens centrally at the gateway.
Secure Message Portal
Encrypted communication even with partners who do not have their own keys.
Recipients receive messages securely in the browser in your CI.
Advanced Gateway Features
Content based encryption policies.
Attachment sanitizing and malware protection.
DLP rules to prevent data loss.
Full audit log for compliance requirements.
Detailed analysis and reporting of mail flow security.
No spam. No malware. No worries.
MailGuard: Intelligent email spam filter
Protect your infrastructure with phishing protection, malware defense, and central security policies. MailGuard blocks threats before they reach the inbox and strengthens your email security in real time.
Multi stage threat detection
Detect spam, malware, and phishing
SPF, DKIM, DMARC, RBL, and heuristic analysis
Flexible rule and filter management
Score based filtering with configurable thresholds
Rules by domain, content, header, or user
Ready immediately
Ready in minutes
Integrates into existing mail servers without rebuilds
Comprehensive features
White and blacklisting
Real time tracking and history
Why Conbool MailGuard?
Detect spam, malware, and phishing
SPF, DKIM, DMARC, RBL, and heuristic analysis
Score based filtering with configurable thresholds
Rules by domain, content, header, or user
Ready in minutes
Legal compliance for your email footers.
Disclaimer: Email signatures centrally under control.
Centralized email signatures, disclaimers and marketing banners directly at the gateway for all devices.
Designer signatures without code
Create CI compliant templates in the intuitive drag and drop editor with no HTML knowledge required.
Add logos and banners in seconds thanks to cloud hosting directly in the gateway.
Dynamic personalization
Automatic population with user data from Microsoft Entra ID (Azure AD) or LDAP.
Our smart logic hides empty lines automatically when data is missing.
Intelligent rules
Control by department, language, or recipient.
Time based campaigns for marketing and events.
Compliance and brand protection
Central management of mandatory company info.
Consistent branding on all devices.
Central management at enterprise level
Smart placement for perfect positioning.
Multi language support with automatic language selection.
Full service hosting without your own web servers.
Device independent for perfect rendering everywhere.
Full transparency while composing thanks to Outlook add-in and native enrichment.
Secure file transfer.
SecureFiles: Send and receive files of any size straight from Outlook, encrypted, hosted in the EU.
Secure file transfer straight from Outlook, with a Secure Inbox for external uploads. Encrypted, GDPR-compliant, no US cloud.
Any file size
Send files of any size straight from Outlook, no portal detour.
Multipart upload, retry-capable, performant even at multi-gigabyte attachments.
Secure Inbox
Pools as shared upload folders, externals are granted access by invitation.
Clients, patients, applicants and suppliers send files encrypted, no account required.
Zero-Knowledge
Client-side encryption already in the sender's browser.
Even we only see ciphertext, no plaintext.
Compliance
GDPR Art. 32, NIS-2 ready, audit log per Art. 30.
European hosting in EU jurisdiction, no CLOUD-Act exposure.
Right inside your workflow
Native in Outlook: Classic, New Outlook and Outlook on the Web.
Passwordless retrieval for returning recipients, 12-month device trust.
Mail in your own tone: sender name, wording, and layout of notification emails are fully customizable.
Malware scan before every release, infected files are rejected before they reach the recipient.
Multi-tenant, native Entra ID integration, SSO from one product.
Who sends mail in your name? DMARC reports in plain language.
DMARC Reports: Capture, analyze and secure DMARC reports automatically.
DMARC aggregate and forensic reports are captured directly through the existing mail flow, visualized and condensed into concrete recommendations. No additional license, no second vendor, no additional subprocessor.
Zero-touch setup
Conbool already serves as the MX. One TXT record is sufficient.
No mail flow changes, no separate recipient endpoint required.
Pass rate at a glance
Trend, top source IPs, SPF/DKIM alignment matrix and domain drilldown.
Analysis over 24 hours, 7 days, 30 days or 3 months.
Recommendations
Move-to-quarantine and move-to-reject recommendations.
Detection of suspicious sources and pass-rate drops.
Forensics and alerts
Forensic reports including header details.
Automatic notification on critical events.
Built into the workflow
Results appear immediately in the Conbool dashboard.
Overview, domains, sources, authentication and forensics in one hub.
Alerts to the addresses configured in settings.
Data processing in the EU, original mails remain in the mailbox.
Multi-tenant, integrated RBAC permissions, ready to use.
Encryption, threat protection and signatures: GDPR-compliant, made in Germany
Sensitive content, confidential communication, critical data: With Conbool your email stays private, secure, and GDPR compliant. As a Cloud Email Security platform. With zero effort.
Ready for secure email communication that just works?
No credit card required - 30 days free - Cancel anytime


