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mailbox.org becomes mailbox: technology and brand reimagined. Find out more!

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Success through partnership as an email reseller

Mail server and groupware hosting

Create added value and inspire your customers

As a mailbox email reseller, you can offer your customers high-quality email services without having to worry about the technical side. Our platform has been designed to support the business needs of resellers and will allow you to optimise existing email services or expand your product portfolio.

Beyond email and groupware, we also offer cloud storage, an online office suite, video conferencing and more.

We operate. You benefit.

Do you already offer email services, but the technical effort involved in web hosting is putting a strain on your resources? Why not let us handle the technical operation – we are experts in secure email hosting, after all. We will ensure a smooth migration to our infrastructure and are prepared to take full responsibility for all technical operations while you can concentrate on your core business.

Expand your product range. Without extra effort.

Would you like to round off your existing offering with professional email services? As a mailbox reseller, you can easily integrate high-quality email solutions into your product range – without the need to invest in your own infrastructure. Expand your business model with a reliable, GDPR-compliant service to explore new sources of revenue.

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Easy administration

Use our easy-to-use web interface or integrate your systems via our API.

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Strategic partnership

We offer not just a product, but long-term cooperation as your reliable partner.

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Support on request

You remain in control of your own customer support, yet we can also support directly, if desired.

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Flexible pricing

You can set your own prices, and all billing processes remain under your control.

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Quality label: Software hosted in Germany 2025
SMiG Quality label 2025
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Your contact at mailbox

Claas Heinrich
Key Account Manager

From companies, authorities, resellers to private customers – numerous users trust us

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Help and Resources

Security & server location

You and your customers benefit from our server location in Germany. We operate our services exclusively in redundant data centres in Berlin that meet the highest security standards. Your customers' data is therefore subject to strict German data protection law and the GDPR - a decisive advantage with regard to your customers' compliance requirements. We ensure maximum security through comprehensive physical and technical protection measures in our data centres. What is most  important: your data does not get transferred abroad, which removes any legal uncertainty about this.

Web administration and API

Our web administration for resellers can be conveniently operated via a web interface and enables quick and easy handling of your customers and their accounts.

  • Core functions: Create new customers, customise customer settings and delete accounts
  • Simple control interface, without the need to use the API
  • Download invoices in PDF and CSV format to support your own invoicing.

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.

Different support levels

At mailbox, we understand that every partner has different requirements. We offer flexible support options that can be tailored to your needs. As a reseller, you decide if you want to handle customer support independently, or whether you prefer to use our expertise. Our "support on demand" model allows resellers to benefit from our expertise whenever there are difficult or complex queries, while being able to use your own customer support to handle regular questions. This flexibility strengthens your market position and allows you to put together customised service packages with the certainty that professional support will be available when you need it.

Whitelabeling and partnership

At mailbox, we aim to establish genuine partnerships instead of pushing anonymous white label solutions. This means that your customers benefit directly from the familiarity and reliability of the mailbox brand.

When logging in, your customers will see the trusted mailbox logo, which provides assurance that their email service is run by a well-established and experienced provider. This transparency ensures trust and underlines your own competence in selecting first-class partners. As a reseller, you can concentrate fully on your core competencies while we take care of the technical side of things - a win-win for everyone involved.

Migration made easy

Switching to mailbox is straightforward and efficient. Our experienced team will guide you through the entire migration process and ensure a seamless transition of your existing email infrastructure. We support you in transferring email accounts, contacts and calendar data from your previous setup, and this will happen without any data loss or long downtime. As a reseller, we also support you in transferring all customers from your previous platform.  With our proven migration strategy, you and your customers will experience a smooth transition and benefit from all the advantages of the mailbox solution.