Why external email communication turns into a security problem
Secure email delivery often fails on technical reality: the recipient system is unknown and the capabilities on the other side vary.
Different technical prerequisites
Private customer, law firm or corporate group: you cannot assume the other side uses PGP or S/MIME. Unencrypted mail risks GDPR violations and data loss.
Manual workarounds raise risk and effort
Pack a password protected ZIP file and send the password by text message afterwards? Such breaks cost time, are error prone and undermine any IT governance.
Secure external communication without a break in the workflow
The right path for every recipient
Our platform detects automatically whether the recipient supports encryption. If it does, delivery runs seamlessly by S/MIME or PGP in the background.
Central control instead of case by case
Take the load off your staff. Central policies define by rule (by domain or label, for example) when a message must be transferred securely.
Fallback without keys
If the recipient offers no encryption, two keyless paths are ready: the Secure Message Portal for interactive communication or PDF encryption for maximum simplicity.
Secure Message Portal
Interactive encrypted communication in the browser. The recipient signs in, reads the message and can reply encrypted right away, in your corporate identity.
Explore the portalPDF encryption
Confidential email is delivered as an AES-256 encrypted PDF. The recipient needs nothing but a PDF reader, no portal, no login, no software installation.
PDF encryption in detailWhere this solution is particularly relevant
Law & finance
Share contracts, client data, balance sheets and pleadings with any external recipient, without compliance risk.
Healthcare
Send patient records, sensitive diagnoses and findings securely to colleagues, laboratories and patients themselves.
HR & recruiting
Send and receive employment contracts, payslips and sensitive applicant data in both directions, fully in line with data protection.
Looking for the technical implementation for Microsoft 365 or Exchange?
Conbool integrates deeply into your existing infrastructure. See how we map secure external communication onto your specific setup.
No keys of your own?
This is how delivery works for recipients without a crypto infrastructure of their own.
Notification
The recipient receives a regular email, branded in your corporate identity, with a secure link to the message.
Authentication
After the click the user authenticates, by SMS one-time code, password or M365/Google SSO for example.
Read & reply
The message and its attachments can be read and answered encrypted right away.
Even simpler: PDF encryption
Not every recipient wants to sign in to a portal. With PDF encryption recipients receive confidential email as a password protected PDF, AES-256 encrypted, with the password over a separate channel. No login, no browser portal, just a PDF reader.
Das Conbool Secure Web-Portal
A secure vault for your external communication. No installation, straight in the browser, fully responsive.
- Corporate identityAdapt logos and colours to build trust with the recipient.
- Secure replyRecipients can answer directly in the portal and upload files in line with data protection.
- Large file transferBypass the classic email limits (25 MB for example) and share large data sets in line with GDPR.
Common questions about secure external communication
What happens if the recipient forgets the password for the portal?
How large can attachments be?
Is the solution fully GDPR compliant?
When is the portal used and when is PDF encryption used?
Make external communication secure without complicating your processes
Try the platform that combines security and usability.