Carbonio CE Support & Administration

What is Carbonio CE?

Carbonio Community Edition by Zextras is the open-source successor to Zimbra's collaboration platform. It provides enterprise-grade email, calendaring, file sharing, and video conferencing. As a Carbonio specialist, I help organizations deploy, migrate to, and maintain Carbonio CE efficiently.

Carbonio Services I Provide

• Carbonio CE fresh installation on Ubuntu 20.04 / 22.04
• Single-server and multi-server architecture design
• Migration from Zimbra 8.x/9.x to Carbonio CE
• Carbonio Files (formerly Zextras Drive) setup and management
• Carbonio VideoServer deployment for web conferencing
• Storage backend configuration and expansion
• Webmail theme customization and branding
• LDAP directory management and user provisioning
• SSL/TLS configuration and certificate management
• Automated backup scheduling and restoration testing
• Version upgrades and security patching

Carbonio Files Downloader

I built a custom Carbonio Files Downloader using SOAP API and GraphQL to bulk-download files from multiple accounts. View on GitHub →

Common Issues I Resolve

• Carbonio service startup failures and dependency issues
• Mail delivery problems (Postfix queue, relay, authentication)
• Storage quota exceeded and disk space management
• LDAP replication and synchronization errors
• Webmail loading issues and browser compatibility
• ClamAV and antivirus engine update failures