Digital inbox for businesses

All documents in one place

All your documents come together centrally in the Caya digital inbox, regardless of their source. Every document is automatically captured, classified, and forwarded to the right people, departments, or systems.

OMR Reviews Top 100 Rated Tools in DACH 2026Caya ist OMR Leader für Intelligent Document Processing

Over 20,000 users are automating their document processes with Caya

4.8 out of 5 star rating on G2
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ISO 27001 certified
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GDPR
DORA
GoBD
-compliant
Cloud servers in Germany

Put an end to paper chaos and scattered mailboxes

Without Caya

No central point of entry
Postal mail sits in the post room, while email attachments are scattered across various mailboxes.
Manual opening and scanning
Letters have to be opened, digitised and filed individually.
Time-consuming distribution
Documents have to be distributed internally and often reach the relevant people with a delay.

Digital inbox with Caya

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All documents are available centrally
Regardless of their source, they are centralised in Caya, archived in a tamper-proof manner and accessible from any location.
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Opening and scanning by Caya
You don't need your own scanning infrastructure. All letters are opened and digitised in our scanning centres.
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Automatic distribution
Following your rules, every document immediately reaches the responsible person, the right department, or goes directly into your system.

How your digital inbox works

Every document ends up exactly where it belongs

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Your mail reaches us

Whether via a mail redirection service, a Caya PO box address, or on-site collection: your business mail goes directly to one of our scanning centres in Germany.

We digitise your mail

In our scanning centres in Germany, your letters are opened and digitised using a standardised and automated process, in full compliance with data protection regulations.

Your mail is available digitally

Once scanned, your documents are stored centrally in your Caya digital inbox.

Ready for further processing

Your documents are then ready for further processing. Use Document Extractions to read relevant data, and Document Automations to route documents and data to the appropriate departments, folders, or connected systems.

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Receipt

Your postal mail reaches us via mail redirection, a Caya postbox address, or local collection, and is digitised in our scanning centres in Germany. Caya automatically retrieves email attachments from your mailboxes, and you can upload other files yourself.

Classification

Caya automatically recognises the type of document it is. It doesn't matter how the document arrived.

Extraction

With Document Extractions, relevant data is read from your documents, such as invoice numbers, amounts, or IBANs.

Distribution

Document Automations forwards every document according to if-then rules you have defined: to a person, a department, a folder, or directly into your connected system, complete with extracted data.

Security and Compliance

Secure from receipt to digital filing

With Caya, your digital inbox is secured according to defined safety and compliance standards. This ensures your documents remain protected at all times.

GDPR compliant

We adhere to current EU regulations. Personal data is properly collected, stored and documented.

ISO 27001 certified

Caya is certified according to the internationally recognised standard for information security management systems.

DORA compliant

Caya meets the requirements of the Digital Operational Resilience Act.

GoBD-compliant

Your digitised documents are stored in accordance with GoBD requirements and are traceable at all times.

Cloud servers in Germany

Your data is stored in an audit-proof manner in an ISO-certified data centre in Frankfurt.

GDPR compliant badge

GDPR compliant

We adhere to current EU regulations. Personal data is properly collected, stored and documented.

Caya is ISO 27001 certified – Information Security Management

ISO 27001 certified

Caya is certified according to the internationally recognised standard for information security management systems.

Caya meets the requirements of the EU DORA regulation for digital operational resilience

DORA compliant

Caya meets the requirements of the Digital Operational Resilience Act.

GoBD-compliant

Your digitised documents are stored in accordance with GoBD requirements and are traceable at all times.

Cloud servers in Germany

Your data is stored in an audit-proof manner in an ISO-certified data centre in Frankfurt.

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A digital inbox that connects with your tools

Want to know if Caya is compatible with your existing setup? Contact us for a consultation.

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Features that make your working day easier

Full-text search

We scan every letter using optical character recognition (OCR). This allows you to find any document in seconds thanks to full-text search.

Folders and tags

Organise your documents clearly in folders and add your own tags to suit your team's workflow.
UI folder structure in the Caya inbox
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Proof of receipt

Every letter received via Caya is date-stamped upon arrival.

Permissions management

You decide who can view and edit which documents. You can set roles and permissions individually.
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Full-featured PDF editor

Use the integrated PDF editor to edit documents directly in Caya, fill out forms, add stamps, and sign digitally.

Still have questions?

Can Caya also process emails and digital documents?

Yes. In addition to your postal mail, Caya automatically retrieves email attachments from your inboxes, and you can add documents via upload. Everything ends up in the same digital inbox and goes through the same classification and distribution process.

How do documents reach the right department?

Use Document Automations to set if-then rules that determine which document goes to which person, department, folder, or directly into which system.

How can we digitise our incoming mail with Caya?

Your post is sent to one of our scanning centres in Germany, where it is opened, scanned and then classified, ready for you in your digital inbox. Your email attachments and uploaded files are also stored there. Caya is a plug-and-play solution that is ready to use in no time, with no additional IT effort required.

Have any questions?
Get in touch.

We are happy to answer all your questions and explain our product to you.

  • We take the time to understand your individual requirements and work with you to develop a solution.
  • Find out how you can increase productivity and optimise your workflows.
  • Get pricing information and discover various use cases for your business.
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