Security & privacy
Security and privacy when sending letters online
Terminations, contracts, medical letters: sending mail online means trusting us with sensitive content. That is why SwissDocs24 stores letter content strictly encrypted (AES-256, a dedicated key per letter), transfers all data over TLS and keeps it in Switzerland. Your letter is only decrypted for printing and dispatch – from CHF 2.49 per letter including printing, envelope and postage.
How your letter is protected
1. Encrypted in transit
Upload, preview and payment run exclusively over TLS-encrypted connections.
2. Encrypted at rest
Letter content and PDF are stored AES-256-encrypted in the database and storage – with a dedicated random key per letter.
3. Securely printed and sent
Your letter is only decrypted for printing and handed directly to our Swiss print partner; Swiss Post delivers it.
Security measures at a glance
- Encryption at rest
- AES-256-GCM, dedicated key per letter (envelope encryption)
- In transit
- TLS-encrypted throughout
- Data location
- Switzerland (data centre in Zurich)
- Payment
- via Stripe – card data never reaches our servers, payment data contains no letter content
- Content analysis
- none – we do not analyse your documents
- Automatic cleanup
- letter content and addresses 12 months after the order, never-paid drafts after 30 days, preview files after 3 days
Prices
All prices per letter, incl. printing, envelope and postage (1 page, grayscale) – no base fee:
| Shipping type | Price from |
|---|---|
| B-Post | CHF 2.49 |
| A-Post | CHF 2.99 |
| A-Post Plus | CHF 5.49 |
| Registered | CHF 8.99 |
- Included in the price: 1 page in grayscale, printing, envelope and postage
- Each additional page: + CHF 0.20
- Colour printing: + CHF 0.15 per page
Example: 3 pages in colour by A-Post = CHF 2.99 + 2 × 0.20 + 3 × 0.15 = CHF 3.84.
For PDF uploads we add a page with the recipient’s address in front. It counts as a page: a 1-page PDF costs the same as a 2-page letter.
“From” prices. The exact cost depends on the page count and colour option and is shown before payment.
Honesty is part of security
- Letter content is never stored in plaintext in our database or storage.
- For printing and dispatch your letter is decrypted – unavoidable for physical mail. Our print partner only receives the print-ready PDF.
- Our emails never contain the letter content.
- Paid letters stay unchanged: the stored PDF is exactly what was printed.
Frequently asked questions
Who can read my letter?
Letter content and PDFs are stored encrypted and only decrypted for printing and dispatch. The print partner receives the print-ready PDF – there is no way around that for physical mail. No content analysis or evaluation takes place.
How are my letters stored?
With AES-256-GCM and a dedicated random key per letter (envelope encryption). The database and storage only hold encrypted data.
Where is my data stored?
In Switzerland, in a data centre in Zurich. Technical error monitoring runs on servers in the EU.
Is my payment data safe?
Payment runs entirely via Stripe (Visa, Mastercard, TWINT, Apple Pay, Google Pay). Card data never reaches our servers, and the payment data at Stripe contains neither letter content nor recipient addresses.
What happens to abandoned orders?
Letters that are never paid are deleted automatically after 30 days; temporary preview files already after 3 days.
How long does my letter stay available?
12 months after the order. Until then it stays available as a PDF in your order overview – stored encrypted and unchanged, exactly as printed. After that we delete its content and addresses automatically; download any letter you need for longer before then.
Does SwissDocs24 check the content of my documents?
No. We only check technical properties such as format and page count, not the content.
