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Answers for private customers

The Knowledge Base for private customers is already largely up to date. A few individual articles are currently being revised and adapted. We thank you for your understanding and look forward to providing you with up-to-date information on using mailbox.

Please note: The knowledge base has changed slightly. Categories have been adapted and URLs stored in the old knowledge base may no longer be valid.

Compatible Web Browsers and Mail Clients

Compatible Browsers and Mail Clients

For access to your mailbox Office, please use a modern and up-to-date web browser with JavaScript and cookies enabled for the domain mailbox.org. Also make sure to update your browser regularly so that you can always use the best possible encryption methods.

Recommendations for Linux, macOS, iOS, and Windows

  • Google Chrome
  • Mozilla Firefox or Mozilla Firefox ESR
  • Apple Safari (macOS and iOS)
  • Microsoft Edge (Chromium-based)
  • Internet Explorer 10/11

The minimum screen resolution for desktop devices is 1024 × 768 pixels.

Recommendations for Android

Please note that under Android, some functions are not available in the mobile version of mailbox Office. Therefore, we recommend using mail clients for use on Android devices.
Recommended are:

  • Thunderbird Mobile - This guide explains how to set up your mailbox account in the Thunderbird Mobile app on an Android device.
  • FairEmail or other common mail clients may also work

For the use of a mobile browser we recommend:

The German internet-security expert Mike Kuketz has more advice, which can be found at this Link: Android Apps: Browsers and E-Mail Client (German). Many of our advanced users follow his recommendations - however, we do not provide support for third-party apps.