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What is lfr?

lfr is a comprehensive mail server and newsletter platform that comes as a single Go binary compatible with both Linux and macOS systems. This solution enables developers, self-hosters, and small teams to effortlessly set up and manage mailboxes associated with their domains, as well as oversee aliases and forwarding, while streamlining email searching and responses, alongside domain mail record management. Among its newsletter functionalities are customizable double-opt-in signup lists, Markdown-based content creation for issues, hosted archives with signup pages, a straightforward one-click unsubscribe feature, and proficient management of bounces and complaints, all supported by a configurable SMTP relay in cases where direct sending isn't feasible. Users can access the command-line interface locally or via SSH, which allows them to perform setup and diagnostics related to server operations, DNS settings, and mail delivery. Distributed under the MIT license, lfr is free to use, but users must take charge of managing and funding their own servers and any optional relay services they may opt for. With its extensive features and intuitive design, lfr emerges as an exceptional option for individuals and teams seeking to retain full control over their email and newsletter management. This makes it not only a practical choice but also a strategic one for those looking to enhance their communication capabilities.

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

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Media

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Integrations Supported

Amazon SES
SMTP2GO

Integrations Supported

API Availability

API Availability

Pricing Information

$0
The software is free and MIT-licensed. Users provide their own server; optional SMTP relay services are billed separately by their providers.
Free Version

Pricing Information

$3/month per mailbox
Free Trial Offered?

Supported Platforms

Mac
On-Prem
Linux

Supported Platforms

SaaS

Customer Service / Support

Web-Based Support

Customer Service / Support

Web-Based Support

Training Options

Documentation Hub

Training Options

Documentation Hub

Company Facts

Organization Name

Anonyfox

Company Location

Germany

Company Website

lfr.email/

Company Facts

Organization Name

SuperMailOS

Date Founded

2026

Company Website

supermailos.com

Categories and Features

Mail Servers

Not specified

Categories and Features

Email Hosting

Not specified

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