
Paperless, secure, efficient: your new document delivery, integrated into your e-banking
Fully comply with regulatory requirements, avoid manual intermediate steps and at the same time create a modern, convenient customer experience for all sensitive financial documents - with a fully end-to-end encrypted inbox solution for your e-banking.
100+ financial institutions already trust us






More security for sensitive data: encrypted digital mailbox - integrated directly into e-banking
Seamless integration into your e-banking system
Fully integrate the Postbox directly into your existing e-banking system. This allows you to send your customers sensitive documents such as account statements, contract documents and tax reports securely, easily and digitally - without additional login processes or paper mailings.

Optimum protection for confidential customer data
End-to-end encryption and zero-knowledge architecture ensure that sensitive documents never pass through unsecured channels and are never visible even to us as the platform provider.

Complete traceability for audits
Automatic logging and confirmation of receipt of all documents sent - for clean regulatory processes and transparent documentation during audits.

Permanent, unalterable document storage
Once delivered, documents remain in the possession of your customers in an audit-proof and tamper-proof manner, traceable and legally unambiguous.

Our case studies: How
our customers master their data security
Discover in our case studies how leading companies have used our solutions to increase their security, optimize processes and achieve their data management goals with compliance, precision and control.
Ready for growing demands in digital banking?
Make a secure and uncomplicated start into the digital future and optimize existing solutions: Postbox scales with your company - from regional institutions to international banking groups. Rely on a platform that has been developed to meet the highest security and data protection standards.
- GDPR-, ECJ- & DORA-compliant
- Highest quality & safety standards
- Flexibly scalable SaaS solution
Our security features:
All-round protection for sensitive customer data
Data protection
End-to-end encryption & zero-knowledge policy for maximum confidentiality
In the banking sector, the protection of sensitive customer data - from account statements and tax documents to proof of assets - is essential to ensure the long-term trust of your customers. Thanks to end-to-end encryption and the consistent implementation of our zero-knowledge policy, all content remains completely protected from unauthorized access during transmission and storage - even from us as the platform provider.
ISO-27001-zertifiziert
Tested safety according to international standards
Banks are subject to particularly strict regulatory requirements. Our solutions are ISO 27001-certified and therefore meet globally recognized standards for information security management systems (ISMS). Postbox therefore supports your bank in complying with regulations such as GDPR/DSG, DORA or industry-specific compliance guidelines. For you, this means tested security and trust - even in the event of particularly strict internal and external audits.
Made and hosted in Switzerland
Swiss quality and data sovereignty for your e-banking mailbox
All data is stored in Switzerland - in certified data centers, in compliance with the strictest security standards. This clear commitment to Switzerland as a data location offers your bank maximum transparency, full data sovereignty and regulatory legal certainty - a decisive trust factor vis-à-vis clients and supervisory authorities alike.
Why companies rely on us
Find out how our solutions make the difference for our customers
What sets our solutions apart:
Maximum security, seamless integration, future-proof scalability
Security by design
Optimum protection for confidential bank documents
Discretion and data protection are top priorities in banking. Our solutions are based on an uncompromising security-by-design approach: end-to-end encryption, zero-knowledge architecture and triple-redundant data storage ensure the protection of all customer data. This allows you to meet the highest security standards and regulatory requirements while strengthening your customers' trust in the long term.
Easy to integrate
Seamless integration into your existing e-banking system
Thanks to modern APIs, Postbox can be seamlessly integrated into existing e-banking and customer platforms - without media disruptions or adjustments for your customers. This means that existing and functioning processes and workflows are retained and expanded to include a secure, digital delivery channel for sensitive documents. Your customers receive all documents in one place, securely archived, without any additional logins or apps.
Individual & scalable
Customizable for institutions of any size and orientation
Whether you are a regional bank, private bank or large universal bank: our solution is designed to grow with your customer volume and the requirements of your bank. Thanks to its scalable architecture, Postbox adapts to your individual needs and remains performant and secure even with an increasing number of users or growing document volumes.
Meets all relevant regulatory requirements - now and in the future
With Postbox, you are on the safe side: our solution fulfills all the relevant requirements set out by the regulatory framework of DORA, DSG/DSGVO and co - audit-proof and audit-ready. Integration is possible within a few weeks thanks to the proven API setup, including support and documentation.
- Fast implementation
- API-based integration
- Developed & hosted in Switzerland