High Fidelity Document Preview
High Fidelity Document Preview is a Network Edition feature that displays a of regular document files using the Libreoffice engine.
All supported documents are converted into a .pdf file, and then any browser with the PDF viewer enabled, or Adobe Reader installed, can preview the files.
DNS caching service (dnscache)
Starting with Zimbra Collaboration 8.5 and above, there is now a DNS caching service available for installation. It is specifically targeted for MTA nodes, and could be perfect for Single-Server Installations.
Three of our supported features rely heavily on DNS lookups: DKIM verification, SpamAssassin Scoring and Postfix RBLs for spam blocking.
Performance Tuning Guidelines for Large Deployments
A deep dive inside the Requirements to install Zimbra Collaboration for large Deployments. This article contains specific recommendations per each Infrastructure: Compute, Storage, Networking, as well as specific tuning recommendations per OS and inside www.9ar9ar.components. A must read.
Zimbra Mobile Device Setup
This article contains an overview of mobility options for Zimbra Collaboration Server (ZCS), as well as information on how to set up Zimbra Mobile for most smartphones on specific operating systems.
It also contains links to device-specific set-up pages, including information for iPhone and Android Devices.