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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.

What is Mailu?

Mailu presents a flexible and user-friendly mail server solution, offered through a suite of Docker images, and is built as free and open-source software that actively invites user feedback and contributions. This initiative aims to provide an easily installable and manageable mail server that is both thorough and free from the proprietary tools or extraneous features that are common in many mainstream groupware solutions. Mailu's key features include: A standard email server configuration that supports IMAP, IMAP+, SMTP, and Submission, along with automated setup profiles tailored for various email clients. Advanced email functionalities such as aliases, domain aliases, and customizable routing options to enhance user experience. Web-based access that combines multiple webmail interfaces with a user-friendly administrative dashboard for streamlined management. User-focused features, including the ability to set up aliases, auto-replies, auto-forwarding, and fetch accounts from external servers, ensuring flexibility in usage. Administrative functionalities designed for comprehensive management, allowing for announcements, domain-specific delegation, and quota assignments to maintain control over resources. Strong security protocols that enforce TLS standards, employ DANE and MTA-STS, utilize Let's Encrypt for secure certificates, provide outgoing DKIM signatures, and include an antivirus scanner alongside Snuffleupagus to bolster protection against malware and harmful attachments. Robust anti-spam mechanisms that feature auto-learning algorithms, greylisting techniques, DMARC and SPF support, and strategies to combat email spoofing effectively. In summary, Mailu emerges as a dependable and secure mail server solution, ideal for users aiming for a reliable email environment while maintaining freedom from unnecessary complexities. Its commitment to user feedback and open-source principles further enhances its appeal in the realm of email services.

Media

No images available

Media

Integrations Supported

Integrations Supported

Docker

API Availability

API Availability

Pricing Information

$3/month per mailbox
Free Trial Offered?

Pricing Information

Free
Open source
Free Version

Supported Platforms

SaaS

Supported Platforms

Linux

Customer Service / Support

Web-Based Support

Customer Service / Support

Not specified

Training Options

Documentation Hub

Training Options

Documentation Hub

Company Facts

Organization Name

SuperMailOS

Date Founded

2026

Company Website

supermailos.com

Company Facts

Organization Name

Mailu

Company Website

mailu.io/2.0/

Categories and Features

Email Hosting

Not specified

Categories and Features

Mail Servers

Not specified

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