
Zentyal
Open SourceZentyal is an open source email and groupware solution based on Ubuntu Linux.
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 is an open source email and groupware solution based on Ubuntu Linux.
Kolab Now is a web-based email and groupware service, based completely on free and open-source software.
Kolab is a free and open source groupware suite.
SOGo (Scalable OpenGroupware.org) is an open source collaborative software (groupware) server with a focus on simplicity and scalability.
Zimbra offers an open source email platform for the enterprise.
Kopano is an open-source groupware application suite originally based on Zarafa.
hMailServer is a free open source email server for Microsoft Windows.
MDaemon Messaging Server is an e-mail server software for Windows.
iRedMail is a free, OpenSource mail server.
OX Open-Xchange is a web-based communication, collaboration and office productivity software.
mailcow is a mail server suite.
Zentyal is an open source email and groupware solution based on Ubuntu Linux.
Kolab Now is a web-based email and groupware service, based completely on free and open-source software.
Kolab is a free and open source groupware suite.
SOGo (Scalable OpenGroupware.org) is an open source collaborative software (groupware) server with a focus on simplicity and scalability.
Zimbra offers an open source email platform for the enterprise.
Kopano is an open-source groupware application suite originally based on Zarafa.
hMailServer is a free open source email server for Microsoft Windows.
MDaemon Messaging Server is an e-mail server software for Windows.
iRedMail is a free, OpenSource mail server.
OX Open-Xchange is a web-based communication, collaboration and office productivity software.
mailcow is a mail server suite.
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