For organizations that require on-premises data sovereignty with carrier-grade scaling, Zimbra MP is arguably the most cost-effective solution.
For users specifically looking for the portal login, you can access the Zimbra Web Client directly. zimbra mp
protocol to provide native synchronization for emails, calendars, and contacts on iOS, Android, and Windows mobile devices. Feature Parity: Beyond basic email, MP supports Shared Folder Synchronization Feature Parity: Beyond basic email, MP supports Shared
| 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) | Feature Parity: Beyond basic email