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Data protection is in our DNA

A digitally sovereign workspace that is completely secure.

For secure communication

With mailbox, authorities and other public institutions can rely on a trustworthy, GDPR-compliant communication platform. As a German provider with server locations in Germany, we know the special data protection requirements of the public sector inside and out and offer a solution that leaves no questions unanswered that your data protection officer may have. We ensure that you are supported throughout the entire process from the tender stage to integration and acceptance.

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Migration

Our specialised team supports you in the smooth migration of your data to mailbox and ensures that all data is transferred securely and in full.

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Security concepts

We offer security concepts that meet the high requirements of the public sector and comprehensively secure your communications infrastructure.

Data protection

As a German provider with a GDPR-compliant infrastructure, we meet all legal requirements and guarantee the protection of your sensitive data.

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Training

We provide training for your employees to ensure the secure and effective use of our platform, and to strengthen data protection awareness within your team.

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Seamless integration

Effortless integration thanks to our team’s many years of experience. We support a range of existing systems for user administration and single sign-on (SSO).

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Services scaling

We know from experience: Every organisation has its own requirements and processes. That is why we also offer customised solutions.

A person sits on a wooden bench, holding a smartphone and a clipboard with notes, surrounded by greenery and soft sunlight.
mailbox replaces Microsoft 365 Calendar Contacts

Everything in one place with centralised control
at the click of a button

Optimised for public authorities: a modular and secure solution that simplifies administrative processes. Our system helps perform work efficiently while complying with the highest data protection standards.

Mail

Every inbox spam-free and secure

Drive

Secure cloud storage for all your data - always available

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Meet

Video conferencing for productive meetings that are easy to set up

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Office

Smooth collaboration using familiar tools

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Admin

Centralised account management for your business

Class Heinrich

Your personal contact

Claas Heinrich 
Key Account Manager

Individual feature sets

Every public authority has its own individual requirements - we offer customised solutions, from simple email inboxes to comprehensive bundles, tailored to your needs and without unnecessary costs. We are also happy to support you with your market research.

Email provider comparison
What we do better
mailbox Other providers
Secure - end-to-end encryption with PGP and S/MIME and storage in our data centres in Berlin. Lack of transparency about data processing and physical server locations.
Made and hosted in Germany - your data is stored securely on our own servers in Germany. Data located outside of DE and EU, with backups on US servers.
Spam filters and virus protection - Multi-level filters protect your mailbox from unwanted messages. Spam in your inbox due to weak or unreliable filters.
Space for everything - Flexible storage space for emails and files. Limited storage space or hidden costs for expansion.
Easy switching - convenient migration service for your existing emails and contacts. Limited switching options due to vendor lock-in.
Always there for you - we take care of you with personal telephone support and our 24/7 emergency hotline. AI chat or telephone support that is located abroad.

Success Stories

Our solutions are used by many well-known enterprises, SMEs, and public authorities. Read here why our customers have opted to choose mailbox.

Digital sovereignty at school: The Austrian Dachsberg Gymnasium successfully transitions to mailbox.

Read the success story now

Many enterprises, SMEs, public authorities, and private customers trust us

On Campus Logo
Gymnasium Org Dachsberg Logo
Plusserver Logo
AFF Architekten Logo
Wappen Freistaat Thüringen
Logo Stiftung Datenschutz
Biomarkt Vollmershausen Logo
Computer Base Logo
Quality label: Software hosted in Germany 2025
SMiG Quality label 2025
100 renewable energy
Logo Allianz für Cyber-Sicherheit

Help and Resources

Contract & accounting

As a mailbox business customer, you get a lot of flexibility:

  • Flexible contracts 
    Add or remove email addresses at any time. Change account price plans with immediate effect. Adjust the storage space you have booked at short notice and only pay for what you need.
  • VAT invoices 
    You will receive a monthly VAT bulk invoice. Payment by bank transfer or Direct Debit can be arranged.
  • Short notice period
    No annual contracts: Our customers tend to be with us because they want to be with us. At mailbox, notice periods are short as a matter of principle.
Support & Service

Depending on your chosen service package, our support specialists are available to be contacted by your account administrator by email ticket system or on the phone - even 24/7 in case of emergency. You decide which level of support you require.

  • 2nd/3rd -Level Support
    mailbox provides 2nd/3rd level support for you as a customer or your account administrator.
  • 1st level support as per mailbox price plan
    We will be happy to provide you with 1st level support for your employees on request. Please note that this option is only available for our STANDARD and PREMIUM mailbox price plans.
  • Personal contact person
    Customers who choose a Platinum or a Gold service package benefit from an individual contact who is available to answer any questions about contract or onboarding.
Advice, planning & migration

Not quite sure yet what exactly you need? Or do you already have a large amount of data in the cloud and are reluctant to move it? Whether it is Gmail, Microsoft 365, another hosting company, or even your own custom solution: professional help is available before, during and after your migration.

  • Support for you and your administrator
    What is possible, what makes sense, what is feasible? As a business customer, you will be assigned a personal contact person in advance. They will contact you to discuss any issues and take care of coordinating your move.
  • Relocation with Audriga
    Our partner Audriga takes care of the automated migration of previously stored data from all accounts: Email, calendars, contacts and even files from your cloud storage. This is a bit like a luxury relocation service: When you enter your new mailbox office, your desk and all files will be there waiting for you.
  • Need help with the setup?
    Do you have questions about apps, software selection or usage options and procedures? Your personal contact will be happy to take care of your onboarding and support you and your users with any individual software setups.
Central administration & API

Everything under control. As a Business Mail customer, you get access to your own administration interface to configure or change your mail hosting settings at any time.

  • Centralised administration
    Manage your contract, domains, mailboxes, forwarding rules, passwords, storage space and all other account settings in a single place.
  • Enable individual settings
    Specify if you want your users to be able to change their individual settings for spam filter, blacklist and backup.
  • Groupware in user groups
    Define different user groups within your account. This makes it easier to share groupware resources such as calendars, contacts and files.
  • API for professionals
    Do you maintain a larger IT environment and have your own administration processes? Or would you like to make our services available to your users as a reseller on your own website? All settings can be easily integrated into your infrastructure and modified through our API.
Server location in Germany

As a business customer, you benefit from the fact that our servers are physically located in Germany. We operate our services exclusively in redundant data centres in Berlin, and these meet the highest security standards. Your data is therefore subject to strict German data protection law and the GDPR - a decisive advantage when it comes to compliance requirements. We ensure maximum security through comprehensive physical and technical protection measures in our data centres. Most importantly, your data does not get transferred abroad, which avoids legal uncertainty.

Enquire now

Class Heinrich

Your contact at mailbox

Claas Heinrich
Key Account Manager