| Feature | Legacy Plugin (Dead) | Modern Add-in (Active) | | :--- | :--- | :--- | | | MSI file (Admin rights required) | One-click from AppSource | | Email Archiving | One-click to Sugar | One-click to Sugar | | Contact Sync | Bi-directional (Automatic) | On-demand or via Webhooks | | Calendar Sync | Two-way (Exchange to Sugar) | Limited (Requires Sugar Serve) | | Offline Support | Yes (Local cache) | No (Requires internet) | | Outlook Versions | Classic 2013/2016/2019 only | O365, New Outlook, Mac, Web | | Sugar Version | 6.x - 10.x (On-Prem only) | 11.x+, Cloud, Serve |