New Outlook for Windows gets a major boost with June 2025 Update

Despite widespread criticism, Microsoft has remained focused on replacing the classic Outlook for Windows with the new web-based Outlook app for everyone. Every month, Microsoft releases updates to the new Outlook app based on user feedback.

Today, Microsoft released the June 2025 update for Outlook for Windows with several improvements, including some of the most requested features by Outlook users.

With this latest update, Microsoft has improved support for .pst (Outlook Data File) files. You can now reply to and forward emails in a stored .pst file. Microsoft is also working on further improving support for .pst files in the new Outlook for Windows.

If you're using the new Outlook app with your personal Microsoft account that has access to Copilot Pro or AI credits through a Microsoft 365 Personal or Family subscription, Copilot features will now be available even for other personal email accounts configured in the Outlook app. This Copilot sharing feature works with email addresses such as Outlook.com, Hotmail.com, Live.com, MSN.com, and third-party providers like Gmail, Yahoo, and iCloud.

Microsoft has also added the ability to easily move emails between personal accounts. This feature is disabled by default for enterprise users, but admins can enable it if needed.

With this update, Microsoft has increased the default mail sync window in offline mode from 7 days to 30 days. Additionally, you can now access search folders and cancel an email after selecting Send in offline mode.

This new update also brings email coaching support through Copilot. Copilot can now suggest adjustments to tone, clarity, and reader sentiment before you hit Send. If you are annoyed with Copilot, you can now disable Copilot completely by going to the Copilot > Copilot control page in the Settings window.

In this release, Microsoft has added the ability to add shared folders to your Favorites, making it easier to access content directly from the Favorites list.

Finally, an "External" tag will be added to external contact suggestions that appear in the dropdown menu when entering contacts in the email compose form, helping you distinguish between your organization's and external contacts.

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