mailcow: dockerized Alternatives

Roundcube

Roundcube webmail is a browser-based multilingual IMAP client with an application-like user interface. It provides full functionality you expect from an e-mail client...

Features:

• Hostable
• PGP Encryption
• Php

Zimbra Collaboration Suite

Zimbra Collaboration is an open, secure collaboration tool for email, calendaring, tasks and more. With the most innovative web application available today, Zimbra...

Features:

• Active Directory integration
• ActiveSync
• Email Server
• Real time collaboration
• Team Collaboration

hMail Server

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...

Features:

• Convert images to PDF
• Support for IMAP
• Email Server
• POP3 Support
• SMTP
• SMTP integration

iRedMail

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...

MDaemon Messaging Server

Low cost, easy to use Email Server software for virtual, on-premise, or hosted deployments for companies that want control of their email. Integrated web-mail with doc...

Features:

• Dropbox integration
• Encrypted Email
• Group chat
• Support for IMAP
• Email Server
• Mobile Device Management
• Outlook integration

Microsoft Exchange Server

Intelligent inbox and calendar software that's a part of the Microsoft Office Suite.

Features:

• Email Server
• Real time collaboration

Mail-in-a-box

Take back control of your email with this easy-to-deploy mail server in a box. Mail-in-a-Box turns a fresh cloud computer into a working mail server. You get contact...

Features:

• Email Server
• Support for IMAP
• Nextcloud integration
• Security & Privacy

Modoboa

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...

iMail

Fast, safe, heavy mail solution. Web-client access, LAN or WAN self-hosted server, maintenance-free design. No Windows server and database server required, unlimited...

Mailu

Mailu is a simple yet full-featured mail server as a set of Docker images. It is free software (both as in free beer and as in free speech), open to suggestions and...