| Open Source Edition |
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| Network Standard Edition | Network Professional Edition |
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Basic |
 AJAX Mail & Address Book- Rich, interactive Mail and Address Book functionality using only a web browser
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- Basic search
- Keyword-based search that utilizes a comprehensive server-side index
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- Advanced search
- Rich "Search Builder" interface for creating and saving advanced, multi-condition searches
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- Tags
- Ability to quickly categorize items by attaching "Tags" with user-defined names and colors
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- Sharing
- Ability to share contacts, calendars, and documents with internal or external users
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- Basic/Enterprise Zimlets
- Ability to dynamically interact with internet/intranet applications and data sources
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- AJAX Calendar
- Rich, interactive Calendar functionality using only a web browser
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- Conversations
- Organized views of message threads to streamline user Inbox management
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- Attachment search*
- Ability to search for contents inside of attachments
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- HTML attachment rendering*
- Ability to quickly view attachments in HTML format
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- Resource/group scheduling
- Ability to schedule meetings, book resources, and evaluate and manage free/busy information
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- AJAX Documents
- Ability to create rich web-based documents and wikis
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- Instant Messaging
- Send IMs to your immediate peers or to buddies in Interop networks
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- Tasks and Briefcase
- Track task progress, priority, and completeness. Conveniently store files in folders instead of as email attachments.
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Administration & TCO |
- Web/CLI administration
- Ability to administer the system via web-based interface or comprehensive command line tools
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- Integrated Anti-Spam / Anti-Virus
- Built in spam and virus scanning (SpamAssassin / ClamAV) with automatic definition updates. Ability to easily plug-in other 3rd party services as desired
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- Online backup/restore
- Ability to backup/restore a single mailbox or set of mailboxes such that any mailbox not actively being processed remains online and accessible
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- Clustering/HA*
- Ability to configure clustered Zimbra servers for high availability
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- Storage management
- Ability to schedule an automated process that moves older messages and data to less expensive disk storage
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- Rebranding
- Ability to custom brand the Zimbra web interface
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- Web/phone support
- Technical support via web, phone, and Knowledge Base
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- Advertising Support
- Ability for service providers to serve keyword or banner based ads
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(optional)
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(optional)
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Domain-level management |
- Multi-domain support
- Ability to create and administer multiple domains in a single deployment
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- Domain-level administration
- Ability to delegate domain-level administrators that can manage users and other settings within a specific domain
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- Domain-level branding
- Ability to create domain-specific custom branding of the Zimbra web interface
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External client compatibility |
- POP/IMAP
- Native compatibility with third party POP and IMAP clients
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- Outlook/MAPI sync
- MAPI-based Outlook synchronization with cached mode and offline support
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- Apple iSync
- Two-way synchronization with Apple iSync enabling compatibility with Apple iCal, Address Book, and other applications in the Apple iSync framework
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Mobility |
- Zimbra Mobile
- Over-the-air push synchronization of mail, contacts, and calendar to Palm, Symbian, and Windows Mobile 5 devices with no additional server
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(optional)
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(optional)
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- Blackberry support
- Over-the-air synchronization of mail, contacts, and calendar to Blackberry devices
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(optional)
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(optional)
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- Rich J2ME Client
- Access email and calendar on popular mass-market devices
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