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Having already been awarded BSI Gold status in the 2025 Email Security Year, mailbox is once again being inducted into the Hall of Fame this year: In 2026, the Federal Office for Information Security (BSI), eco – Association of the Internet Industry e. V. and Bitkom e. V. focused on the implementation of the DNSSEC email security standard. The BSI assessed participating companies on the successful implementation of these standards. mailbox has been successfully implementing DNSSEC and other modern security standards for years, which makes us all the more delighted to have received this independent assessment and confirmation from the BSI. We are therefore among the companies that demonstrably offer their customers and staff a secure email infrastructure, as well as implementing and maintaining specific email security measures to improve online protection.

Stiftung Warentest tested a total of 18 email options – including eight paid services such as mailbox – that offer plans for private customers. The services were examined and assessed in terms of set-up, usability, support, privacy, as well as their terms and conditions and privacy policy. mailbox received a mark of 1.8 and is recommended as an email provider for privacy. We are delighted to be ranked amongst the best providers for the third time.

Berlin, 2 September 2026 – mailbox, the digital workspace for secure communication, has been awarded a mark of 1.8 by Stiftung Warentest and is recommended as an email provider for privacy. This marks the third time the German company has been ranked among the best providers for private customers.

Whether it’s a phishing attack, ransomware, a server failure or a licence suspension: when a public authority’s primary IT systems come to a standstill, so does its communication. From 13 to 15 October 2026, we’ll be demonstrating at the Smart Country Convention (SCCON) in Berlin how public authorities and local councils can remain operational in an emergency with EVAC by mailbox. Find out how to acquire free tickets and get in touch with us.

Two new features make your day-to-day email work easier: with signature templates, you can choose the right signature for the occasion, and with text templates, you can insert recurring phrases with just a few clicks.

In times of geopolitical uncertainty and growing dependence on US technology companies, mailbox is committed to legal certainty and transparency. The "Cybersecurity Made in Europe" label from the European Cyber Security Organisation (ECSO) is a commitment to genuine European data protection in an increasingly translucent digital world.

Berlin, 10 February 2026 – mailbox, the digital workplace for secure communication, has published its annual transparency report on official requests for information for 2025. In the report, the provider reveals the type and scope of official requests for information from the past year and reviews the results.

As a mail provider, mailbox regularly receives requests for information from the authorities. In our Transparency Report 2025, we disclose the nature and scope of these requests for information from the authorities over the past year.

Berlin, 21 January 2026 - mailbox launches EVAC, a ready-to-use secondary IT communication structure for companies and the public sector. With the new solution, organisations can ensure the continuity of their communications in the event of a failure of their primary structure due to cyber attacks, server outages or natural disasters and thus remain capable of acting. EVAC by mailbox enables the fulfilment of central NIS-2 requirements and the BSI 200-4 standard for business continuity management.

mailbox launches secondary communication platform: cyberattacks, server outages, natural disasters – if your business communication falls victim to a crisis scenario, you are reliant on the rapid restoration of your communication capabilities. In addition, the NIS-2 Directive and the German NIS-2-UmsuCG significantly tighten the requirements for critical infrastructures and important facilities (KRITIS). To equip you for these requirements and emergencies, mailbox has developed the ready-to-use secondary communication solution EVAC : If the worst comes to the worst, EVAC ensures that you remain capable of acting.

Berlin, 7 January 2026 – Heinlein Hosting GmbH, the legal operator of mailbox, has received the BSI C5 Type 1 certificate from the German Federal Office for Information Security (BSI). This certificate from the independent testing agency confirms that mailbox fully complies with the BSI security criteria specifically for cloud services. Together with ISO/IEC 27001 certification and other awards, the certificate attests to the priority that the provider of the secure digital workplace attaches to email security, information security and data protection.