Zimbra Collaboration: Full Email, Calendar, and Contacts on Your Servers Training Course

Collaboration Sovereignty Landscape

• Zimbra versus Microsoft Exchange and Google Workspace regarding total cost.
• Benefits of single-tenant control, auditing, and data residency.
• Feature comparison between Network Edition and Open Source Edition.

Installation and Setup

• Preparation: hostname, DNS, firewall, and OS hardening.
• Deployment patterns for single-server and multi-server environments.
• Using the installation wizard, creating the initial domain, and provisioning admins.

Messaging Core

• Integrating Postfix and OpenLDAP within Zimbra.
• Configuring Webmail, IMAP, and POP3 clients.
• Enabling mobile access via ActiveSync, Exchange Web Services, and CalDAV.

Groupware Features

• Managing shared calendars, resource scheduling, and delegation.
• Linking contacts and global address lists to organizational units.
• Utilizing Briefcase for file sharing and document versioning.

Security and Authentication

• Setting up SSL/TLS and automating with LetsEncrypt.
• Implementing two-factor authentication using TOTP and hardware keys.
• Tuning anti-spam (amavis, DKIM, SPF) and anti-virus (ClamAV) systems.

Directory Federation

• Configuring external LDAP and Active Directory authentication.
• Implementing delegated administration and domain separation for multi-tenant scenarios.

Backup and Disaster Recovery

• Executing real-time backup and restore operations using zmbackup.
• Developing snapshot strategies for mail store and database volumes.
• Establishing cross-site replication and failover procedures.

Administration and Monitoring

• Deep dive into the Admin console: COS, quotas, and message retention.
• Using CLI utilities for batch operations and scripting.
• Performing performance tuning and JVM memory allocation.