From the Microsoft 365 roadmap - Microsoft 365 Roadmap | Microsoft 365
Rollout Start: January 2025
Outlook: First phase of PST support in new Outlook for Windows
The first phase PST (a.k.a. Outlook Data File) support in the new Outlook for Windows provides read-only access to Mail items within *.pst files. Users will be able to open *.pst files, read their emails within *.pst files, and search *.pst files for emails. All Calendar, Contacts, and Tasks data saved in the *.pst files are still there, but they cannot be accessed in this preview. Next releases will expand PST support capabilities.
- Feature ID: 399467
- Added to roadmap: 6/6/2024
- Last modified: 11/12/2024
- Product(s): Outlook
- Cloud instance(s): Worldwide (Standard Multi-Tenant)
- Platform(s): Desktop
- Release phase(s): General Availability