How to Always Open a New Email in a Separate Window in Outlook
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How to Always Open a New Email in a Separate Window in Outlook

Many users prefer to compose new emails in their own dedicated window, not within the main Outlook pane. This allows for easier window management and multitasking. The default behavior in Microsoft Outlook is to open new messages in a tab or pane. This article explains how to change a single setting to force all new emails to open in a separate window.

Key Takeaways: Open New Emails in a Separate Window

  • File > Options > Mail > Replied and forwarded messages: This section contains the master setting for how Outlook opens new message windows.
  • Open all standard mail in the reading pane: Unchecking this option is the primary method to enable separate windows for new emails.
  • Ctrl + N: After changing the setting, this keyboard shortcut will create a new email in its own window, not in the main Outlook interface.

Understanding Outlook’s Message Window Behavior

Outlook offers two primary modes for composing emails. The default mode in recent versions opens new messages, replies, and forwards within the main application window, often in a pop-out pane or tab. This is designed for a cleaner, single-window interface.

The alternative is the classic separate window mode. Each new message opens in its own independent window with its own taskbar button. This method is favored by users who work with multiple monitors or who need to arrange email drafts alongside other applications. The setting that controls this is not immediately obvious, as it is grouped with options for replied messages.

Steps to Enable Separate Windows for New Emails

You only need to change one setting to make this the default behavior for all new emails, replies, and forwards.

  1. Open Outlook Options
    Click the File tab in the top-left corner of the Outlook ribbon. Then select Options from the left-hand menu. This opens the Outlook Options dialog box.
  2. Navigate to Mail Settings
    In the left pane of the Outlook Options window, click the Mail category. This will load various mail-related configuration settings.
  3. Locate the Window Setting
    Scroll down the Mail options until you find the section titled "Replied and forwarded messages." Within this section, look for the checkbox labeled "Open all standard mail in the reading pane."
  4. Disable the In-Pane Setting
    Click to uncheck the box next to "Open all standard mail in the reading pane." This action tells Outlook to stop using the reading pane or tabs for composition and to use separate windows instead.
  5. Apply the Change
    Click the OK button at the bottom of the Outlook Options window to save your new setting and close the dialog. The change takes effect immediately.

Common Mistakes and Limitations

Setting Does Not Apply to Calendar or Contact Windows

The setting under Mail options only controls standard email messages. Creating a new calendar appointment with Ctrl + Shift + A or a new contact with Ctrl + Shift + C will still open within the main Outlook window by default. These items have their own separate window behaviors controlled elsewhere.

Confusion with the Reading Pane

The setting’s name mentions the "reading pane," which is primarily for reading received emails. When this box is checked, Outlook uses a similar in-application pane for composing. Unchecking it does not turn off the reading pane for viewing emails; it only changes where you compose new messages.

Pop-up Blockers May Interfere

If you have a strict pop-up blocker enabled in your web browser or security software, it might incorrectly block the new Outlook email window. Ensure Outlook is added to the allow list for pop-ups in your browser settings, even though the window is a desktop application.

Composing in Pane vs. Separate Window: Key Differences

Item Composing in Pane (Default) Separate Window
Window Management Contained within main Outlook window Independent window with own taskbar icon
Best For Single-screen, focused workflow Multi-monitor setups and multitasking
Closing Behavior Closes back into main Outlook interface Must be closed individually
Keyboard Shortcut Ctrl + N opens message in pane Ctrl + N opens a new standalone window
Resizing and Moving Limited by main Outlook window frame Can be freely resized and positioned anywhere on screen

You can now create every new email in its own resizable window. Use Ctrl + N to quickly start a draft without leaving your current view. For advanced control, explore macro scripts if you need to automatically position new email windows on a specific monitor.