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Course Outline

Collaboration Sovereignty Landscape

  • Comparative analysis of Zimbra, Microsoft Exchange, and Google Workspace regarding total cost of ownership.
  • Advantages of single-tenant architectures, including enhanced audit capabilities and data residency controls.
  • Detailed feature comparison between Network Edition and Open Source Edition offerings.

Installation and Setup

  • Preparatory procedures: hostname configuration, DNS resolution, firewall rules, and operating system hardening.
  • Deployment models for both single-server and multi-server infrastructure.
  • Execution of the installation wizard, initial domain creation, and administrator account provisioning.

Messaging Core

  • Integration of Postfix and OpenLDAP within the Zimbra framework.
  • Configuration of Webmail, IMAP, and POP3 client protocols.
  • Mobile device access implementation via ActiveSync, Exchange Web Services, and CalDAV standards.

Groupware Features

  • Management of shared calendars, resource scheduling, and task delegation.
  • Contact management and global address lists synchronized with organizational units.
  • File sharing capabilities via Briefcase, including document versioning controls.

Security and Authentication

  • SSL/TLS configuration and automated certificate management using LetsEncrypt.
  • Implementation of two-factor authentication using TOTP and hardware security keys.
  • Tuning of anti-spam mechanisms (amavis, DKIM, SPF) and anti-virus protections (ClamAV).

Directory Federation

  • Authentication integration with external LDAP directories and Active Directory services.
  • Delegated administration strategies and domain separation for multi-tenant operational scenarios.

Backup and Disaster Recovery

  • Real-time backup and restore operations using the zmbackup utility.
  • Snapshot strategies for mail store and database volume protection.
  • Cross-site replication protocols and failover procedures for business continuity.

Administration and Monitoring

  • In-depth analysis of the admin console, including Class of Service (COS) definitions, quotas, and message retention policies.
  • Use of command-line interface utilities for batch operations and automation scripting.
  • Performance optimization techniques and JVM memory allocation adjustments.

Requirements

  • Proficient Linux server administration experience.
  • DNS management proficiency, including MX, A, TXT, and SRV records.
  • Understanding of web servers, proxies, and Java-based applications.

Audience

  • Enterprise messaging architects replacing Exchange or Google Workspace infrastructure.
  • Organizations seeking a secure, single-tenant collaboration server for government and public sector use.
  • Government and education sectors with strict data localization and sovereignty mandates.
 21 Hours

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