Digitization 

Swiss Post now delivers letters digitally, too

Customers can now decide whether they want to receive their letters in the traditional way in their letter box or digitally in the Post-App. The digital letter is now part of the universal postal service and brings mail secrecy securely into the digital world.

Whether you’re on the sofa, on holiday or on the train – you can send and receive digital letters anytime and anywhere. They are not a replacement for physical letters, but a supplement that offers the best of both worlds: the digital letter is secure and legally binding like the traditional letter, while offering the speed and convenience of digital communication. Swiss Post provides a secure infrastructure for sending and receiving digital letters. Private customers use the Post-App, while business customers can send and receive letters directly via their business software.

Here’s how the digital letter works

The digital letter is very easy to use: the sender writes the letter on their computer or smartphone, uploads it to the Post-App and enters the recipient’s postal address. The letter is then sent digitally or printed, sealed in an envelope and sent physically, depending on the recipient’s wishes. If the digital variant is selected, the letter is delivered immediately. If the recipient opts for the paper version, Swiss Post will deliver the letter the next day (A Mail) or after two to three days (B Mail).

Information protected at all times

Through this new service, Swiss Post is transferring mail secrecy into the digital world, while meeting the highest standards of data protection and legal certainty. The sender and recipient are verified, a digital seal guarantees the authenticity of the letter, a qualified time stamp documents the time of acceptance, and confirmation of receipt ensures transparency. This means the digital letter is much more than an
e-mail − and it also prevents fraud, which is a challenge in digital communication. Customers can be confident that their information will remain protected, regardless of whether they opt for physical or digital delivery.

Digital letter incorporated into the universal service

Customers are already sending their letters digitally: around 11,000 business customers and 360,000 private customers use digital post. Last year, Swiss Post transported 4.5 million consignments using its hybrid delivery system. Following the Federal Council’s decision in December 2025, the digital letter is now part of the statutory universal service. Until that date, only physical letters, parcels, newspapers and financial services had been covered. “We’re moving with the times,” says CEO Pascal Grieder. “Our customers are entitled to a modern public service that also includes secure transport of digital information.” By modernizing its universal service obligation, Swiss Post can better reflect the importance of digital communication in the modern world and, in turn, provide the right service for all customers.