Get your organization up and running with Zimbra, fast Get your organization up and running with Zimbra, fast Administer the Zimbra server and work with the Zimbra web clientProtect your Zimbra installation from hackers, spammers, and virusesAccess Zimbra from Microsoft Outlook In Detail Zimbra is open-source server and client software for messaging and collaboration: email, group calendaring, contacts, and web document management and authoring. The Zimbra server is available for Linux, Mac OS X, appliances, and virtualization platforms. The Zimbra Web 2.0 Ajax client runs on Firefox, Safari, and IE, and features easy integration/mash-ups of web portals, business applications, and VoIP using web services. This book shows readers how to install and configure Zimbra for use with the web client, Outlook, and mobile devices. Readers will learn about Zimbra Collaboration Suite architecture and get an overview of its Administration. The book covers setting up users, using Zimbra as your main email server, and security, spam, and virus issues. It wraps up by looking at some Zimlets - Zimbra mashups - as well as backing up and managing performance. What you will learn from this book Installing Zimbra on Red Hat Enterprise Linux 4, SUSE ES 9, and MAC OS XAdministering Zimbra from the command lineCreating a new domain, configuring global settings, and creating new accounts on Zimbra.Securing Zimbra through built-in security, user security, securing the Operating System, and securing the networkConfiguring Windows Mobile and Palm OS to sync with ZimbraIntegrating Zimbra with Microsoft OutlookIntegrating Zimlets into email and calendaringWorking with mail queues and monitoring log files Approach This is a compact Administrators Guide. It is friendly, and contains plenty of step-by-step instructions for installation and configuration of Zimbra as well as useful references and checklists. Who this book is written for Administrators working with Zimbra on Linux or Mac OS X. Administrators who want to set up Zimbra for use in small/medium businesses.