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

Horde Groupware is a free, enterprise ready, browser based collaboration suite. Users can manage and share calendars, contacts ...

Microsoft Exchange Server is a messaging and collaborative software product developed by Microsoft. It is part of the Microsof ...

hMailServer is a free e-mail server for Microsoft Windows. Its used by Internet service providers, companies, governments, sch ...

Modoboa is a mail hosting and management platform including a modern and simplified Web User Interface . It provides useful co ...

MDaemon Messaging Server software for Windows can be deployed in virtual, hosted cloud or private on-premise environments. It ...

iMail - Business and School Ultimate Free Mail Solution Web-client access, LAN or WAN self-hosted server, maintenance-free des ...

Sanwhole Exchange is a server running iMail, iPress and iStore services.

iMail is an enterprise-class email server does Micros ...

A fully fledged, free email server solution, an open source project (GPL v2).

Use official binary packages from Linux/BSD dist ...

SophiMail is a fully-featured email and collaboration server, ideal for private hosting: on cloud, on premises or hybrid.

Solv ...

Roundcube webmail is a browser-based multilingual IMAP client with an application-like user interface. It provides full functi ...

Postfix Admin is a web based interface used to manage mailboxes, virtual domains and aliases. It also features support for vac ...

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 int ...