hMail Server is not available for Linux but there are plenty of alternatives that runs on Linux with similar functionality. The best Linux alternative is mailcow: dockerized, which is both free and Open Source. If that doesn't suit you, our users have ranked more than 25 alternatives to hMail Server and 14 are available for Linux so hopefully you can find a suitable replacement. Other interesting Linux alternatives to hMail Server are Dovecot (Free, Open Source), iRedMail (Freemium, Open Source), Citadel (Free, Open Source) and Axigen (Paid).
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.
Axigen provides a multi-tenant, fully integrated, multi-platform, all-in-one email, calendaring and collaboration messaging solution. It grants extensive branding options and is localized in over 29 languages (including right-to-left writing mode).
Kerio Connect makes email, calendars, contacts and task management easy and affordable. With Kerio Connect, you have immediate, secure access to your communications anytime, anywhere, on any device - without complexity or expensive overhead.
Magma is a fully-featured, commercial-grade email server with support for SMTP, POP3, IMAP, HTTP, and an internal protocol MOLTEN. Support for the DIME ecosystem of advanced encryption protocols is currently in active development. Originally created by Ladar Levison for lavabit.
Archiveopteryx is an Internet mail server, optimised to support long-term archival storage. It seeks to make it practical not only to manage large archives, but to use the information therein on a daily basis instead of relegating it to offline storage.