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Average Ratings 2 Ratings

Total
ease
features
design
support

Description

SuperMailOS provides managed business email services on your own domain, specifically designed for small teams. You simply provide your domain while SuperMailOS takes care of the mail server and ensures optimal deliverability through SPF, DKIM, DMARC, IP reputation management, and warmup, guaranteeing that your emails reach the inbox instead of being marked as spam. The setup process is quick and user-friendly; you can verify your domain in seconds using one-click DNS with platforms like Cloudflare and DigitalOcean, or follow simple copy-paste instructions with any registrar, then invite your team members and begin sending emails immediately. Each user receives a genuine mailbox, with the added benefit of unlimited and free aliases, such as hello@ and support@. The webmail interface is designed to be as intuitive as Gmail, featuring threaded conversations, instant search capabilities, keyboard shortcuts, labels, and dark mode, alongside support for IMAP and SMTP, enabling compatibility with any email application. Additionally, SuperMailOS provides a real-time deliverability dashboard to monitor where your emails land. Pricing is straightforward with a flat rate per mailbox: the Pro plan costs $3 per month when billed annually and includes 10 GB of storage and three domains, while the Business plan is priced at $5 per month, offering 30 GB of storage and unlimited domains, along with customizable options for larger teams of 50 or more. A 14-day free trial is available with no credit card required, allowing you to experience the service risk-free.

Description

mailbox offers a secure digital workplace designed to meet the highest standards of data protection and compliance. Developed and operated in Germany, the mailbox Suite combines email, calendar, contacts, office tools, video meetings, and cloud storage in one simple, intuitive environment. As a European provider, mailbox rejects tracking and data monetisation. We prioritise transparency and user control, giving businesses, institutions, and individuals full digital sovereignty – without compromising productivity. mailbox is part of the Heinlein Group, an expert in secure and open communication for more than 30 years.

API Access

Has API No 

API Access

Has API Yes 

Screenshots View All

No images available

Screenshots View All

Integrations

Boxcryptor No 
Franz No 
MailRoute No 
Stackreaction No 
TIMi No 

Integrations

Boxcryptor Yes 
Franz Yes 
MailRoute Yes 
Stackreaction Yes 
TIMi Yes 

Pricing Details

$3/month per mailbox
Free Trial Yes 
Free Version No 

Pricing Details

No price information available.
Free Trial Yes 
Free Version No 

Deployment

Web-Based Yes 
On-Premises No 
iPhone App No 
iPad App No 
Android App No 
Windows No 
Mac No 
Linux No 
Chromebook No 

Deployment

Web-Based Yes 
On-Premises No 
iPhone App Yes 
iPad App Yes 
Android App Yes 
Windows No 
Mac No 
Linux No 
Chromebook No 

Customer Support

Business Hours No 
Live Rep (24/7) No 
Online Support Yes 

Customer Support

Business Hours Yes 
Live Rep (24/7) Yes 
Online Support Yes 

Types of Training

Training Docs Yes 
Webinars No 
Live Training (Online) No 
In Person No 

Types of Training

Training Docs Yes 
Webinars No 
Live Training (Online) No 
In Person No 

Vendor Details

Company Name

SuperMailOS

Founded

2026

Website

supermailos.com

Vendor Details

Company Name

mailbox

Founded

2014

Country

Germany

Website

mailbox.org/en/

Product Features

Product Features

Email Management

Data Recovery No 
Email Archiving No 
Email Deletion No 
Email Discovery No 
Email Monitoring No 
Email Recall No 
Queue Manager No 
Response Management No 
Routing No 
Shared Inboxes No 
Signature Management No 
Spam Blocker No 
Whitelisting / Blacklisting No 

Alternatives

Alternatives