26 Like SOGo Good alternative? YES NO SOGo is groupware server with a focus on scalability and open standards. SOGo provides a rich AJAX-based Web interface and supports multiple native clients through... Free Open Source Linux Web Thunderbird Cloudron CalDAV CardDAV Add a feature
24 Like Zimbra Collaboration Suite Alternative? YES NO Zimbra Collaboration is an open, secure collaboration tool for email, calendaring, tasks and more. With the most innovative web application available today, Zimbra... Freemium Linux Web Real time collaboration Add a feature
15 Like Microsoft Exchange Server Alternative? YES NO Microsoft Exchange Server is a messaging and collaborative software product developed by Microsoft. It is part of the Microsoft Servers line of server products and is... Commercial Windows Web Real time collaboration Add a feature
3 Like OBM Good alternative? YES NO OBM is a free messaging and collaboration platform useful for just a couple to many thousands of users with strong support for mobile devices. Free Open Source Mac Windows Linux CalDAV Real time collaboration Add a feature
5 Like Expanding Communication Alternative? YES NO Turnkey Solutions for the Enterprise Cloud Installation, Configuration, and Management tools for enterprise email, collaboration, messaging, video conferencing, file... Commercial Linux CalDAV Add a feature
1 Like iMail Good alternative? YES NO 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... Free Windows Self-Hosted No features added Add a feature
5 Like SophiMail Good alternative? YES NO SophiMail is a fully-featured email and collaboration server solving the most critical email issues: maximizes Privacy, Portability and Cost efficiency, Admin & User... Free BSD VirtualBox Self-Hosted KVM (Kernel-based Virtual Machine) HyperVM Citrix XenServer VMware vSphere Hypervisor FreeBSD ... Microsoft Hyper-V Server Daily Backup Indexed search CalDAV CardDAV Privacy focused Private messaging ... Schedule Backup Security focused Selective folder sharing Shared folders Team collaboration Two factor authentication Unlimited users Add a feature
1 Like Xeams Good alternative? YES NO Xeams is a secure & powerful mail server for Windows, Linux, Solaris, MacOSX and other flavors or UNIX, which supports SMTP, POP3, and IMAP. It includes a powerful... Free Personal Mac Windows Linux BSD No features added Add a feature
1 Like Netrepid Hosted Exchange Services YES NO Hosted Exchange solutions from Netrepid - the best hosted exchange provider. Accelerate your technology at on demand speed. Commercial Web No features added Add a feature
