OpenChange
OpenChange aims to provide a portable Open Source implementation of Microsoft Exchange Server and...
OpenChange Alternatives [Page 3]
The best OpenChange alternatives based on verified products, community votes, reviews and other factors.
Latest update:
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/dovecot-alternatives
Dovecot is an open source IMAP and POP3 email server for Linux/UNIX-like systems, written with...
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/zarafa-alternatives
Open Source Collaboration, providing integration with your existing Linux mailserver, native mobile...
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Visit website
The #1 email warming service to improve your deliverability by generating realistic and meaningful engagement to your emails. Easy-to-use solution to help you land in the main inbox instead of the spam folder.
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/apache-james-alternatives
Apache James is a pure Java SMTP, POP3 enterprise mail server.
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/mercury-mail-transport-system-alternatives
The Mercury Mail Transport System is a mail server that sends and receives messages on behalf of a...
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/kolab-now-alternatives
Kolab Now provides a suite of intuitive apps in a user friendly environment to make your day to day...
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/microsoft-office-365-alternatives
Microsoft Office is an office suite of desktop applications, servers, and services for the Microsoft Windows and OS X operating systems.
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/radicale-alternatives
The Radicale Project is a complete CalDAV (calendar) and CardDAV (contact) server solution.
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/atmail-alternatives
Save time and scale faster with accessible, secure, and reliable cloud email services. A proven multitenant email solution for telcos and service providers.
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/expanding-communication-alternatives
Turnkey Solutions for the Enterprise Cloud
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/grommunio-alternatives
grommunio (formerly known as grammm) efficiently combines all requirements of modern, digital communication and collaboration.
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/xeams-alternatives
Xeams is a secure and powerful mail server for that includes a powerful spam filtering engine that...
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/hyperoffice-alternatives
HyperOffice: Pioneering online collaboration software since 1998. Share documents, manage tasks, email, intranet, sync Outlook, mobility. Free trial.
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/emails-alternatives
Simple, easy and secure mail server with a convenient and simple interface.
