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Top Alternatives to Microsoft Exchange Server

Looking for Microsoft Exchange Server alternatives? We've curated 11 top alternatives that offer similar functionality. Whether you need options, free plans, or open source solutions, explore our comprehensive list to find the perfect fit for your needs.

Zentyal

Zentyal

Open Source

Zentyal is an open source email and groupware solution based on Ubuntu Linux.

vs Microsoft Exchange Server

Open Source solution unlike Microsoft Exchange Server
Kolab Now

Kolab Now

Commercial

Kolab Now is a web-based email and groupware service, based completely on free and open-source software.

vs Microsoft Exchange Server

Alternative option to Microsoft Exchange Server with different features and pricing
Kolab Community

Kolab Community

Open Source

Kolab is a free and open source groupware suite.

vs Microsoft Exchange Server

Open Source solution unlike Microsoft Exchange Server
SOGo

SOGo

Open Source

SOGo (Scalable OpenGroupware.org) is an open source collaborative software (groupware) server with a focus on simplicity and scalability.

vs Microsoft Exchange Server

Open Source solution unlike Microsoft Exchange Server
Zimbra Collaboration Suite

Zimbra offers an open source email platform for the enterprise.

vs Microsoft Exchange Server

Alternative option to Microsoft Exchange Server with different features and pricing
Kopano

Kopano

Open Source

Kopano is an open-source groupware application suite originally based on Zarafa.

vs Microsoft Exchange Server

Open Source solution unlike Microsoft Exchange Server
hMail Server

hMail Server

Open Source

hMailServer is a free open source email server for Microsoft Windows.

vs Microsoft Exchange Server

Open Source solution unlike Microsoft Exchange Server
MDaemon Messaging Server

MDaemon Messaging Server is an e-mail server software for Windows.

vs Microsoft Exchange Server

Alternative option to Microsoft Exchange Server with different features and pricing
iRedMail

iRedMail

Open Source

iRedMail is a free, OpenSource mail server.

vs Microsoft Exchange Server

Open Source solution unlike Microsoft Exchange Server
OX Open-Xchange

OX Open-Xchange

Open Source

OX Open-Xchange is a web-based communication, collaboration and office productivity software.

vs Microsoft Exchange Server

Open Source solution unlike Microsoft Exchange Server
mailcow

mailcow

Open Source

mailcow is a mail server suite.

vs Microsoft Exchange Server

Open Source solution unlike Microsoft Exchange Server

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