Mail-in-a-box is described as 'Easy-to-deploy mail server' and is a Mail Server in the security & privacy category. There are more than 10 alternatives to Mail-in-a-box for a variety of platforms, including Linux, Self-Hosted, Mac, Windows and BSD apps. The best Mail-in-a-box alternative is mailcow: dockerized, which is both free and Open Source. Other great apps like Mail-in-a-box are Cloudron, Cloud Mail, Postfix and Nexmail.
mailcow is a mail server suite based on Dovecot, Postfix, SOGo, Rspamd and other open source software, that provides a modern Web UI for administration.
Germany
EU
Cloudron is a complete solution for managing apps & users on your own server. Easily deploy production ready apps from the app library and keep them automatically up-to-date. It even comes with a built-in email server and web clients!.
GermanyEU
Cloudflare Workers-based email solution providing multiple address generation, attachment storage via R2, responsive web interface, RBAC management, Resend bulk email, Telegram or third-party forwarding, verification code recognition, and ECharts analytics.
China
Postfix is a mail transfer agent (MTA) that routes and delivers electronic mail. It attempts to be fast, easy to administer, and secure. The software is also known by its former names VMailer and IBM Secure Mailer.
NexMail is an open-source, modern webmail client designed for self-hosted email servers. Enjoy a clean, intuitive interface with powerful features for managing your emails efficiently.
Pakistan
Mail Server Builder empowers you to deploy a full-featured, unlimited self-hosted SMTP server effortlessly. Gain complete control over your email infrastructure, ensuring high deliverability and compliance without relying on third-party providers.
FranceEU
hMailServer is a free e-mail server for Microsoft Windows. Its used by Internet service providers, companies, governments, schools and enthusiasts in all parts of the world.
Stalwart is an open-core mail server solution with JMAP, IMAP4, POP3, and SMTP support and a wide range of modern features. It is written in Rust and designed to be secure, fast, robust and scalable.
United States
Modoboa is a mail hosting and management platform including a modern and simplified Web User Interface. It provides useful components such as an administration panel or a webmail.
A fully fledged, free email server solution, an open source project (GPL v2).
Use official binary packages from Linux/BSD distributions, with both i386 and x86_64 support.
Easy, fast deployment in LESS THAN 1 MINUTE. View YouTube Video to check how easy it is.
Works on both no.
Exim is a message transfer agent (MTA) developed at the University of Cambridge for use on Unix systems connected to the Internet.
