← Back
(Updated) New Microsoft Outlook for Windows: Drag and drop files between accounts as attachments
MC1104315 · build prod-20251231-200323
Category
stayInformed
Severity
normal
Major change
False
Last modified
2025-07-23 21:41:18
Summary source
Azure OpenAI (gpt-4.1)
Action by (Graph)
Action by (AI)
Services
Exchange Online, Microsoft 365 apps
Tags
Updated message, New feature, User impact, Admin impact
Master tags
User, Admin, Security
Roadmap IDs
493289

One-line summary

New Outlook for Windows adds drag-and-drop to move emails/files between accounts as attachments, available mid-October 2025 for GA; feature depends on ItemsToOtherAccountsEnabled policy.

Similar updates

More like this
MC1125491 (Updated) Microsoft Outlook for Windows: Add attachments while offline
(Updated) Microsoft Outlook for Windows: Add attachments while offline Users of the new Outlook for Windows can attach files to draft emails while offline; rollout begins April 2026 for general availability and respects existing admin policy settings. Introduction We’re enhancing offline functionality in the new Microsoft Outlook for Windows..
MC1147392 Microsoft Outlook: Set up classic Outlook accounts and settings in new Outlook for Windows automatically
Microsoft Outlook: Set up classic Outlook accounts and settings in new Outlook for Windows automatically Starting October 2025, Outlook will auto-configure classic Outlook accounts in new Outlook for Windows if conditions are met, enabling seamless transition without user setup. Introduction To simplify the transition experience, starting in.
MC1129718 (Updated) New Feature: Account Manager in Outlook for Windows
(Updated) New Feature: Account Manager in Outlook for Windows A new Account Manager in Outlook for Windows launches mid-March 2026, with profile photos, account details, and account switching to align with classic Outlook. Updated March 2, 2025: We have updated the timeline. We're introducing a new Account Manager experience in Outlook for.
MC1129129 (Updated) Outlook: Create and save email templates in the new Outlook for Windows
(Updated) Outlook: Create and save email templates in the new Outlook for Windows New Outlook for Windows and Web adds email templates, including .oft import, for faster, consistent communication; rollout starts mid-October 2025 for general availability. Updated October 23, 2025: We have updated the timeline for Gov clouds. The new Outlook for.
MC1041465 (Updated) New Microsoft Outlook for Windows and Outlook on the web: Optimized hover actions in the message list
(Updated) New Microsoft Outlook for Windows and Outlook on the web: Optimized hover actions in the message list Hover actions in Outlook message lists will move to the Sender/From column for space efficiency; rollout starts mid-July 2025 (Targeted Release), mid-September 2025 (General Availability). This message is associated with Microsoft 365.
MC1162289 (Updated) Microsoft Outlook: Summarize email with Copilot chat
(Updated) Microsoft Outlook: Summarize email with Copilot chat Copilot chat in Outlook now lets users quickly summarize emails and attachments with one click; rollout starts mid-October 2025 for all Outlook platforms, no admin action needed. Updated October 2, 2025: We have updated the content. [Introduction] We're introducing a new way to.

Details

RoadmapIds
493289
Summary
The new Microsoft Outlook for Windows will allow users to drag and drop emails and files as attachments between personal or enterprise accounts, starting mid-August 2025 for Targeted Release and mid-October 2025 for General Availability. This requires the ItemsToOtherAccountsEnabled setting in OwaMailboxPolicy.
Platforms
Desktop

Body (from Message Center)

Updated July 23, 2025: We have updated the timeline. Thank you for your patience.

We're introducing a new drag-and-drop capability in the new Microsoft Outlook for Windows. This feature will users to drag emails and files from one personal or enterprise account and drop them into another personal or enterprise account as attachments—streamlining cross-account workflows and improving productivity.

This message is associated with Microsoft 365 Roadmap ID 493289.

[When this will happen:]

Targeted Release: We will begin rolling out mid-August 2025 and expect to complete by mid-September 2025.

General Availability (Worldwide, GCC): We will begin rolling out mid-October 2025 and expect to complete by mid-November 2025.

[How this will affect your organization:]

Before this rollout, users are not able to drag emails and files from one account to another.

After this rollout, users from organizations with the ItemsToOtherAccountsEnabled parameter set to TRUE in the OWAMailboxPolicy will be able to:

  • Drag and drop emails and files from one mailbox into a draft in another mailbox as attachments.
  • Attach content from Shared Mailboxes or Shared Folders into another mailbox.

To enhance security, users will see a confirmation prompt before completing the drag-and-drop action:

user message

This confirmation does not appear when attaching files from a Shared Mailbox.

This feature respects your existing OWAMailboxPolicy settings and does not change any defaults.

[What you need to do to prepare:]

This rollout will happen automatically by the specified dates. Review your current OWAMailboxPolicy settings, particularly the ItemsToOtherAccountsEnabled parameter, to determine if you would like to enable or disable this feature after roll out occurs. No change to your existing ItemsToOtherAccountsEnabled configuration will occur with this rollout. You may want to notify your admins and/or users about this change and update internal documentation.

Learn more about the ItemsToOtherAccountsEnabled parameter in Set-OwaMailboxPolicy (ExchangePowerShell) | Microsoft Learn

#newoutlookforwindows

Raw JSON (for debugging)

Expand/collapse the full payload below.
Show/hide raw
{
  "snapshot_item": {
    "action_required_by": null,
    "ai_action_required_by": null,
    "ai_actions": [
      "Review OWAMailboxPolicy ItemsToOtherAccountsEnabled setting",
      "Notify admins/users of new drag-and-drop feature",
      "Update internal documentation if needed"
    ],
    "ai_master_tags": [
      "User",
      "Admin",
      "Security"
    ],
    "ai_model": "gpt-4.1",
    "ai_summary": "New Outlook for Windows adds drag-and-drop to move emails/files between accounts as attachments, available mid-October 2025 for GA; feature depends on ItemsToOtherAccountsEnabled policy.",
    "ai_topics": [
      "Exchange",
      "Microsoft 365 Apps",
      "Outlook"
    ],
    "category": "stayInformed",
    "details_map": {
      "Platforms": "Desktop",
      "RoadmapIds": "493289",
      "Summary": "The new Microsoft Outlook for Windows will allow users to drag and drop emails and files as attachments between personal or enterprise accounts, starting mid-August 2025 for Targeted Release and mid-October 2025 for General Availability. This requires the ItemsToOtherAccountsEnabled setting in OwaMailboxPolicy."
    },
    "id": "MC1104315",
    "importance": 1,
    "is_major_change": false,
    "last_modified": "2025-07-23T21:41:18Z",
    "ms_products": [
      "Exchange",
      "Microsoft 365 Apps"
    ],
    "platforms": "Desktop",
    "roadmap_ids": [
      "493289"
    ],
    "services": [
      "Exchange Online",
      "Microsoft 365 apps"
    ],
    "severity": "normal",
    "tags": [
      "Updated message",
      "New feature",
      "User impact",
      "Admin impact"
    ],
    "title": "(Updated) New Microsoft Outlook for Windows: Drag and drop files between accounts as attachments"
  }
}