Zimbra Mp -

| Feature | Single-Server | Multi-Server (MP) | | :--- | :--- | :--- | | | Single point of failure. | Redundant LDAP, MTA, and Mailbox servers. | | Scalability | Limited to vertical scaling (bigger server). | Horizontal scaling (add more mailbox servers). | | Maintenance | Downtime required for updates/kernel patches. | Zero-downtime rolling maintenance. | | Performance | All services compete for RAM/CPU. | Dedicated resources for each role. | | Disaster Recovery | Complex; full server restore needed. | Easier; failed component can be rebuilt. |

The "MP" designation explicitly indicates a deployment strategy designed for: zimbra mp

A typical Zimbra Multi-Server deployment separates these key services: | Feature | Single-Server | Multi-Server (MP) |

Some organizations require certain departments (e.g., Finance, Legal) to have physically separate mail stores for compliance reasons. Zimbra MP allows you to pin specific accounts or domains to specific mailbox servers. | Horizontal scaling (add more mailbox servers)

| Quarter | Planned Feature | |---------|----------------| | Q2 2026 | Full-featured Outlook sync via Graph API bridge | | Q3 2026 | Built-in backup/restore manager with S3 compatibility | | Q4 2026 | Offline mode for Modern Web UI (Progressive Web App) | | H1 2027 | AI-based email categorization and smart replies | | Future | Classic ZCS 9.x extended support ends (EOL announced for 2028) |

and items, ensuring that team collaboration remains seamless even when away from a computer. Global Address List (GAL) Integration