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What is mailbox.org?

mailbox is the European alternative for organisations that value privacy, data security, and independence. Our all-in-one digital workplace – the mailbox Suite – brings together email, calendar, office, video conferencing, and drive in a single platform hosted entirely in German data centres. Unlike most providers, mailbox does not track users or monetises data. We focus exclusively on our customers’ needs, enabling efficient, compliant, and secure digital communication. As part of the Heinlein Group, mailbox builds on over three decades of experience in privacy-focused IT infrastructure and communication services.

What is SuperMailOS?

SuperMailOS offers tailored business email solutions on your own domain, specifically aimed at small teams. By simply providing your domain, you let SuperMailOS manage the mail server, ensuring excellent deliverability with features like SPF, DKIM, DMARC, IP reputation management, and warmup, which help guarantee that your messages land in the inbox rather than being filtered as spam. The setup is efficient and user-friendly, allowing you to verify your domain in mere seconds using one-click DNS options with platforms like Cloudflare and DigitalOcean, or by following straightforward copy-paste instructions with any domain registrar. Once verified, you can invite team members and start sending emails right away. Each user is provided with a genuine mailbox and enjoys the advantage of unlimited free aliases, such as hello@ and support@, enhancing communication flexibility. The webmail interface mimics the user-friendliness of Gmail, incorporating features like threaded conversations, instant search functionality, keyboard shortcuts, labels, and dark mode, while also supporting IMAP and SMTP for seamless integration with various email applications. Moreover, SuperMailOS includes a real-time deliverability dashboard that enables users to track where their emails are delivered, providing valuable insights into communication effectiveness. Pricing is transparent, featuring a flat rate per mailbox: the Pro plan is available for $3 per month when billed annually, which includes 10 GB of storage and support for three domains, while the Business plan, priced at $5 per month, offers 30 GB of storage and unlimited domains, with customizable options available for larger teams of 50 or more members. Additionally, a 14-day free trial is offered without the need for a credit card, allowing prospective users to explore the service risk-free and determine if it meets their business needs. This risk-free trial underscores SuperMailOS's commitment to customer satisfaction and confidence in its service quality.

Media

Media

No images available

Integrations Supported

Boxcryptor
Franz
MailRoute
Stackreaction
TIMi

Integrations Supported

API Availability

Has API

API Availability

Pricing Information

Pricing not provided
Free Trial Offered?

Pricing Information

$3/month per mailbox
Free Trial Offered?

Supported Platforms

SaaS
Android
iPhone
iPad

Supported Platforms

SaaS

Customer Service / Support

Standard Support
24 Hour Support
Web-Based Support

Customer Service / Support

Web-Based Support

Training Options

Documentation Hub

Training Options

Documentation Hub

Company Facts

Organization Name

mailbox

Date Founded

2014

Company Location

Germany

Company Website

mailbox.org/en/

Company Facts

Organization Name

SuperMailOS

Date Founded

2026

Company Website

supermailos.com

Categories and Features

Email Hosting

Not specified

Email Management

Not specified

Categories and Features

Email Hosting

Not specified

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