M365 Archive

RM485750 - Outlook: Forward as attachment emails in a PST file in new Outlook for Windows

Microsoft 365 Roadmap

Summary

With this update of support for .pst files (a.k.a. Outlook Data File) in the new Outlook for Windows, users will be able to forward as an attachment emails in a .pst file. Future releases of new Outlook will expand the support for .pst file capabilities. #newoutlookforwindows #pstfilesupport.

Roadmap ID

485750

View in M365 Roadmap

Last Updated

Nov 14, 2025

Published Mar 18, 2025

Status

Launched

Release

General Availability

Platforms

Desktop

Service

Outlook

Tag

Launched
General Availability
GCC

Cloud

GCC

Description

With this update of support for .pst files (a.k.a. Outlook Data File) in the new Outlook for Windows, users will be able to forward as an attachment emails in a .pst file. Future releases of new Outlook will expand the support for .pst file capabilities. #newoutlookforwindows #pstfilesupport.

GA date: October CY2025