Zimbra Collaboration Suite
Zimbra Collaboration Suite is an open source email and collaboration platform. It includes email, contacts, calendar, document management, and other collaboration tools. Zimbra is designed for enterprises and service providers.
email
calendar
contacts
collaboration
open-source
Zimbra Collaboration Suite: Open Source Email and Collaboration Platforms
A comprehensive email and collaboration platform, including email, contacts, calendar, document management, and other tools, designed for enterprises and service providers.
What is Zimbra Collaboration Suite?
Zimbra Collaboration Suite is an open-source, enterprise-grade collaboration and messaging platform. It includes a full-featured email server as well as calendaring, contacts, document sharing, tasks, and more.
Some of the key features of Zimbra Collaboration Suite include:
- Modern web-based interface for mail, calendar, contacts, documents etc.
- Support for mobile devices including native apps for iOS and Android
- Powerful search capabilities across all data
- Flexible deployment models including on-premises, multi-server, virtualization, and the cloud
- Security features like automatic spam blocking, virus scanning, encrypted data storage, and more
- Synchronization with Microsoft Outlook
- Administrative dashboard and controls for managing domains, accounts, servers etc.
- APIs and easy integration with other business apps
Zimbra Collaboration Suite is designed for deployment in enterprises, universities, ISPs, telcos, hosting providers, and governments. It scales to serve tens of millions of users while providing carrier-grade reliability and security.
Zimbra Collaboration Suite Features
Features
- Calendar
- Contacts
- Document management
- File sharing
- Instant messaging
- Video conferencing
- Mobile sync
- Spam filtering
- Encryption
Pricing
- Open Source
- Subscription-Based
Pros
Open source
Feature rich
Extensible via plugins
Works across multiple platforms
Can be self-hosted or cloud-based
Scalable for large deployments
Cons
Can be complex to setup and manage
Lacks some features of proprietary solutions like Microsoft Exchange
Limited native mobile apps
Requires more IT resources than SaaS options
The Best Zimbra Collaboration Suite Alternatives
Top Office & Productivity and Email and other similar apps like Zimbra Collaboration Suite
Here are some alternatives to Zimbra Collaboration Suite:
Suggest an alternative ❐
Roundcube
Roundcube is a free and open source web-based IMAP email client. It was designed from the ground up to be fast, flexible and easy to install and use. One of the main goals is having an efficient and visually appealing graphical user interface that is both intuitive and functional.Some of...
Google Workspace
Google Workspace (formerly G Suite) is a subscription-based collection of cloud computing, productivity and collaboration tools, software and products developed by Google. It was launched in 2006 as Google Apps for Your Domain and rebranded as G Suite in 2016 before being renamed Google Workspace in 2020.Google Workspace includes popular...
Microsoft Exchange Server
Microsoft Exchange Server is an email, contacts, calendar, and tasks application server developed by Microsoft. It is part of the Microsoft Servers line of server products and runs on Windows Server operating systems.Exchange Server provides enterprises with:Business class email with support for large mailboxes, message tracking, and legal holdsShared contacts,...
Mailcow: dockerized
mailcow: dockerized is an open-source email server solution designed to run on Docker. It bundles together common email components and services like Postfix, Dovecot, SOGo, Rainloop, PostfixAdmin, and more into preconfigured Docker containers that work together out of the box.Some key features of mailcow include:Simple setup - Everything is packaged...
IRedMail
iRedMail is an open-source email server solution that integrates Postfix, Dovecot, Amavisd-new, SpamAssassin, ClamAV antivirus, Roundcube webmail, OpenLDAP, and Fail2Ban. It aims to be a full-featured and easy-to-use email server for businesses, organizations, developers, and personal use.Some key features of iRedMail include:Supports multiple Linux distributions like RHEL, CentOS, Debian, Ubuntu,...
Axigen
Axigen is a full-featured email server software solution that enables organizations, service providers, businesses, and governments to host and control their own messaging infrastructure. It has a wide range of features and scalability options to adapt to the needs of companies or organizations of any size.Key capabilities and benefits of...
OBM
OBM (Open Business Management) is an open-source, integrated suite of business applications including modules for customer relationship management (CRM), human capital management (HCM), financials, procurement, supply chain management, and more. It aims to provide a free alternative to expensive proprietary business suites like SAP, Oracle, or Microsoft Dynamics.Some key capabilities...
Sendmail
Sendmail is a popular open source email server program (MTA or Mail Transfer Agent) used on Unix/Linux machines to route, deliver, and forward email messages. It is highly configurable and scales well to handle anything from small local email deliveries to enterprise-level bulk email routing.Some key features of Sendmail include:Routing,...
Poste.io
Poste.io is an open-source newsletter service that aims to provide an easy way for bloggers, publishers, businesses, and anyone else to create, send, and manage email newsletters. Some key features of Poste.io include:Drag-and-drop editor - Build newsletter templates by dragging and dropping elements like text blocks, images, dividers etc. Provides...
Grommunio
Grommunio is an open-source, self-hosted team chat application similar to Discord. It allows users to create servers and discussion channels for real-time communication via text, voice, and video.Some key features of Grommunio include:Modern and intuitive user interfacePublic and private text channels with threaded conversationsVoice chat rooms with noise suppressionVideo calling...
Kolab Community
Kolab Community is a free and open-source groupware application suite. It includes key productivity applications like email, calendars, address books, task management, and note taking.Some key features and highlights of Kolab Community:Open standards support - Uses IMAP for email, CalDAV for calendars, CardDAV for contacts, etc. This allows integration with...
Nextcloud Hub
Nextcloud Hub is an open-source, self-hosted content collaboration platform that provides organizations the ability to have on-premises alternatives to things like Dropbox, Office 365, or G Suite. It includes powerful online file sync & share capabilities, along with integrated online document editing, secure chat & messaging, calendar/contacts management, and more.Some...
Kolab Now
Kolab Now is a cloud-based email and collaboration platform focused on privacy and security. It is offered by the Swiss company Kolab Systems AG and runs on its own servers located in Switzerland.Some key features of Kolab Now include:Full-text searchable email with IMAP/SMTP accessContact management, calendaring and task management toolsFile...
Apache James
Apache James is an open-source Java email and messaging server developed as part of the Apache Software Foundation. It provides a complete and modular platform for building, deploying and managing advanced messaging applications and services.Some key features of Apache James include:Support for common mail protocols like SMTP, POP3, IMAP as...
Kopano
Kopano is an open-source, on-premise groupware and collaboration suite developed primarily in the Netherlands. It originally started as an alternative to Microsoft Exchange Server and Outlook but has expanded to support most major desktop and mobile platforms.Kopano provides core productivity features including:Email with support for IMAP, POP3, SMTP authentication as...
OpenChange
OpenChange is an open source server software that aims to provide seamless compatibility with Microsoft Exchange servers and clients. Developed by Julien Kerihuel, OpenChange allows organizations to operate Linux-based mail and groupware servers while supporting Outlook clients and other Microsoft collaboration tools.At its core, OpenChange attempts to fully mimic the...
IceWarp
IceWarp is a suite of email and collaboration tools developed by IceWarp Ltd. that organizations can host on their own servers and infrastructure. It provides a range of capabilities including:Email with webmail, POP3, IMAP, mobile sync, spam filteringShared calendars, contacts, tasksTeam chat and instant messagingFile storage, sharing, and synchronizationDocument editing...
CrossBox
CrossBox is an open-source automated web application testing tool. It allows developers and testers to run frontend tests on real browsers and devices using Selenium, without having to set up the infrastructure themselves.Some key features of CrossBox include:Test your app across browsers like Chrome, Firefox, Safari, Edge on various operating...
AfterLogic Aurora
AfterLogic Aurora is an open-source email and collaboration platform designed for enterprises and small businesses. It provides a full set of communication and productivity tools including:Secure and private email hosting with support for unlimited domains, mailboxes, and email storage.Shared calendars, contacts, tasks which can be accessed from desktop or mobile...
Zarafa
Zarafa is an open source collaboration and productivity platform that includes email, calendars, contacts, tasks and more. It serves as a full-featured alternative to Microsoft Exchange Server for businesses and organizations.Some key features of Zarafa include:Compatible with various email clients like Outlook and ThunderbirdSupports shared calendars, address books, tasks, notes...
Contactoffice
Contactoffice is a feature-rich customer relationship management (CRM) software designed for small and medium-sized businesses. It helps organize contacts, track interactions across channels, manage deals and pipelines, automate marketing campaigns, provide customer support, and gain actionable insights.Key features of Contactoffice CRM include:Contact Management: Organize contacts, accounts, and leads in one...
Blue-Mind
Blue-Mind is an open-source collaboration and communication platform designed for enterprises and organizations. It includes a full suite of productivity tools including:Email with calendars and contactsDocument management with version controlInstant messaging and video conferencingShared task managementCustomizable workflowsBlue-Mind is designed as an alternative to proprietary groupware platforms like Microsoft Exchange or...
EmailSuccess
EmailSuccess is a comprehensive email marketing and automation platform designed to help small and medium-sized businesses maximize their email campaigns. With EmailSuccess, you can:Create beautiful, responsive email campaigns using a wide variety of customizable templatesDesign effective workflows with a visual campaign builder to segment contacts, trigger automated emails, and drive...
Expanding Communication
Expanding Communication is a software program designed specifically to help improve communication and social skills for individuals with autism spectrum disorder or other developmental disabilities. It uses evidence-based techniques like video modeling and visual supports to break down and teach important conversational skills step-by-step.The software includes a library of video...
Alinto
Alinto is an open-source, self-hosted alternative to Trello for task and project management. It has a simple and intuitive drag-and-drop kanban-style interface that allows users to create boards, lists, and cards to organize tasks and track project progress.Some of the key features of Alinto include:Creating unlimited boards, lists, and cardsDrag-and-drop...
SMBMail
SMBMail is an email server software specifically designed for small and medium-sized businesses. It provides enterprise-grade email services while being easy to set up and manage.Some key features of SMBMail include:Simple installation wizard to get up and running quicklyIntuitive web-based admin console for managing domains, users, aliases etc.Built-in anti-spam and...
Sanwhole Exchange
Sanwhole Exchange is an email and collaboration platform created by Sanwhole Technologies in the late 2000s as an alternative to Microsoft Exchange. It is designed primarily for small and medium businesses as an affordable on-premises or cloud-hosted solution.Key features of Sanwhole Exchange include:Email with support for mobile devices, offline access,...
EGroupware
EGroupware is an open-source collaborative software that provides a suite of tools for team communication, collaboration, and productivity. It offers a variety of modules including:Contacts - For managing contact lists and address booksCalendar - A shared calendar with scheduling and event management toolsEmail - A group email tool with shared...
HyperOffice Email Service
HyperOffice Email Service is a full-featured business email hosting and collaboration platform designed for organizations of all sizes. It provides enterprise-grade email accounts with large mailbox storage, advanced security features like SSL/TLS encryption, spam and virus protection, email continuity, and more.Key features of HyperOffice Email Service include:Easy-to-use webmail interface for...
DeskNow
DeskNow is a user-friendly, scalable workspace management solution suitable for small to large enterprises. It enables optimized usage of office real estate by supporting flexible and shared desk arrangements.Some key features include:Interactive floor maps with status indicators showing available, reserved, and occupied desks/roomsDesk and room reservation system for employeesAnalytics and...
Postaci
Postaci is an open-source customer support software designed specifically for small businesses and startups. It allows small teams to efficiently manage customer conversations across multiple channels like email, live chat, social media messengers and more - all from a unified and intuitive inbox.Some key features of Postaci include:Unified inbox to...
MailShogun
MailShogun is a powerful email marketing platform used by over 600,000 businesses and organizations. It makes it easy to create professional, eye-catching email campaigns with an intuitive drag-and-drop builder and hundreds of customizable templates.Key features of MailShogun include:Audience targeting - Segment your contacts and target emails based on location, interests,...