IncaMail is a secure digital communication service offered by Post CH Digital Services AG, part of Swiss Post. It enables businesses, public authorities and individuals to send and receive confidential email with encryption and protection against unauthorized access or alteration. Designed to support compliance with Switzerland’s Data Protection Act and the EU’s GDPR, IncaMail helps organizations transmit sensitive documents such as payslips, contracts, invoices, tax assessments and official decisions.

The service is available through three options: an email-client solution that works with tools such as Microsoft Outlook, integration with business software for automated or bulk mailings, and a web interface for sending and receiving messages. Business integrations can help replace paper letters and connect with systems such as SAP, while an electronic registered-mail option provides proof of delivery. IncaMail is integrated with ePost, Swiss Post’s digital communications platform. Swiss authorities can use it as a recognized secure delivery platform for specified legal proceedings. Individuals can send up to ten encrypted messages per month free with a Basic account.