Outlook Email Preview: Change Lines and Reading Pane

To change the email preview in Outlook, adjust the message-preview lines to show more or less text in the message list, and change the Reading Pane to choose where a selected email opens. In classic Outlook for Windows, use View > Message Preview for preview lines and View > Reading Pane for the pane. New Outlook, Outlook on the web, and Mac have similar controls, but their settings may be in different places.

What You’ll Need

Access to the Outlook account and folder whose message list you want to change.
A recent version of Outlook, or a web browser signed in to Outlook on the web. The exact controls depend on whether you use classic Outlook, new Outlook, or Outlook for Mac.
A few minutes to adjust and check the layout. Preview and Reading Pane settings can be specific to a folder or app, so check the folder you use most.

Step-by-Step

Identify which Outlook you are using. On Windows, classic Outlook has the traditional File tab and a View tab on the ribbon; new Outlook has a more web-like interface and a Settings gear. Outlook on the web runs in a browser. On a Mac, use Outlook for Mac. This matters because the names and locations of the controls differ. If you are unsure, look for a Settings gear or check the app title and menus before following the matching instructions below.
Open the folder whose list you want to change. Select Inbox, or another mail folder, in the folder pane. The preview appears beside each message in the list, while the Reading Pane displays the selected message. Changing the view while a particular folder is selected is a useful way to check whether the setting applies to that folder. If you want to use the same layout elsewhere, visit those folders and check them too.
In classic Outlook for Windows, choose the number of preview lines. Select the View tab on the ribbon, then choose Message Preview. Select Off, 1 Line, 2 Lines, or 3 Lines. Outlook may ask whether you want to apply the change to the current folder or to all mailboxes. Choose the scope you want, then confirm. More lines show more of each email’s text beneath its subject, but they also make each row taller and reduce how many messages fit on screen.
In new Outlook or Outlook on the web, change preview text. Select the Settings gear, open Mail, then Layout. Find Message preview text or the similarly named preview-text setting. Choose the available line count or turn preview text on or off, then close Settings if the change saves automatically. The exact options can vary with account type and updates. If you do not see a line-count control, use the available preview-text switch and check the Reading Pane options in the next step.
Set the Reading Pane in new Outlook or Outlook on the web. Select View, then open Layout and choose Reading pane. Select Right, Bottom, or Off, depending on the choices shown. Right places the email beside the message list; Bottom places it below the list; Off opens a message when you select or open it instead of displaying it in the pane. In some builds, the Reading Pane control is available directly under View or in Settings > Mail > Layout.
In Outlook for Mac, adjust the preview and pane separately. Select the folder, then use the macOS menu bar’s View menu. If available, choose Message Preview and select a line count or turn the preview off. To reposition or hide the message area, open View > Reading Pane and select the offered position, such as Right, Below, or Off. Menu labels can vary between the new and legacy Mac interface. If Message Preview is not in the menu, check Outlook settings for a Mail or Reading option.
Check what the change looks like. Return to the message list and compare a few emails with different subject and body lengths. Confirm that the sender, subject, and amount of preview text are easy to scan, and that the Reading Pane is where you expect. A short email may not visibly fill every selected preview line. A long email may show only a snippet rather than its full body.
Repeat the change where needed. If another folder still looks different, select it and check its view. Classic Outlook may offer to apply a Message Preview change to the current folder or all mailboxes; new Outlook, web, and Mac behavior can differ by version and account. Also check another Outlook app or device: a layout change in one may not carry over to every Outlook installation.

Common Mistakes

Confusing preview lines with the Reading Pane. Message preview lines are the short text snippets shown in the message list, commonly beneath the subject. The Reading Pane is the larger area that shows the selected email. Changing one does not necessarily change the other, so set both if you want a different overall layout.
Looking for classic Outlook labels in new Outlook. The classic ribbon’s View > Message Preview command may not appear in new Outlook. Use its Settings or View layout controls instead. If a step does not match your screen, confirm which Outlook version is open rather than searching for a missing ribbon command.
Choosing too many lines for a crowded inbox. Three lines can make message snippets easier to read, but the taller rows mean fewer emails are visible at once. If you often scan a busy inbox, try one line first, then increase the count only if the extra context is useful.
Expecting the preview to show the entire email. A message preview is a snippet, not a full message. It may show less text when an email is short, has formatting that affects the snippet, or starts with a long greeting or signature. Open the email in the Reading Pane or in its own window to read the complete message.
Assuming the change applies everywhere. Outlook can treat folders, accounts, and apps differently. If the Inbox changes but another folder does not, check that folder’s view. If Outlook on the web changes but the desktop app does not, adjust the desktop app separately.

Tips

Choose the Reading Pane position for your screen. Right is often convenient on a wide display because the list and message sit side by side. Bottom can work better on a narrow window. Off can give the message list more room when you prefer to open emails separately.
Use fewer lines when you need to scan quickly. One line preserves more rows on screen and can be enough when sender names and subjects are descriptive. Two or three lines can help when you need to identify messages by their opening sentence.
Resize the pane before changing other settings. If the message list or email body seems cramped, move the divider between the list and the Reading Pane when the interface allows it. Resizing changes the available space; it does not change how many preview lines Outlook is set to show.
Check the selected folder before troubleshooting. A layout that looks different in Sent Items or a custom folder may not mean the setting failed. Select that folder and inspect its view controls before changing the Inbox again.
Make one change at a time. Set the preview text first, then the Reading Pane position. That makes it easier to tell whether the result came from the line count, pane position, or a folder-specific view.

Troubleshooting

The preview setting is missing. Check whether you are in classic Outlook, new Outlook, Outlook on the web, or Outlook for Mac. In classic Windows Outlook, look under View > Message Preview. In new Outlook or the web, open Settings > Mail > Layout and look for a message-preview option. In Mac Outlook, check the View menu and Outlook settings. If your interface does not offer a line count, that version may only provide an on/off option.

The Reading Pane disappeared. Reopen the layout controls and select Right or Bottom rather than Off. In classic Windows Outlook, use View > Reading Pane. In new Outlook and the web, check View > Layout > Reading pane or Settings > Mail > Layout. If the pane is technically on but too narrow to notice, widen the Outlook window or look for its divider.

The number of lines seems unchanged. Confirm the selected folder and reopen the preview setting to see which option is active. Then select a longer email: short messages may not contain enough text to show the difference. In classic Outlook, if asked whether to apply a change to one folder or all mailboxes, make sure you selected the intended scope. Close and reopen the folder if its list has not refreshed.

Only some messages show preview text. The snippet is drawn from the message content and may differ between emails. Some messages begin with a greeting, image, or other content that provides little useful text. Open a message to see its full content. If previews are completely absent across the folder, check whether Message Preview is set to Off or the preview-text setting is disabled.

The setting changes back or differs on another device. Check the setting in the specific Outlook app and account where the problem occurs. Some view choices are stored locally or vary by folder, and not every desktop, web, and mobile version shares identical controls. Update Outlook if an expected layout control is missing, restart the app, and check the setting again. If the issue affects a work or school account, an organization’s configuration may also limit available options; contact your administrator if the control remains unavailable.

Frequently Asked Questions

What is the difference between email preview and the Reading Pane?

Email preview usually means the short snippet of message text displayed in the message list. The Reading Pane is the larger area that shows the selected email’s contents. You can change the snippet length and pane position separately.

Can I turn off message preview but keep the Reading Pane?

Yes, where your Outlook version offers separate controls. Set Message Preview or preview text to Off, then set the Reading Pane to Right or Bottom. The message list will show less body text while the selected email can still appear in the pane.

How do I show more lines of an email in the Outlook inbox?

In classic Outlook for Windows, select View > Message Preview and choose two or three lines. In new Outlook or Outlook on the web, check Settings > Mail > Layout for the message-preview text option. The available choices depend on the version.

Why does the preview show the sender or subject but not the email text?

Message Preview may be off, or the preview-text setting may be disabled. Turn it on in the relevant View or Layout settings. If only one email has no useful snippet, its opening content may not provide text that Outlook can display clearly.

Will changing the preview view affect every Outlook folder?

Not necessarily. Classic Outlook may ask whether to apply the setting to the current folder or all mailboxes. Other versions may use different behavior, and settings may not sync across every app or device. Check each folder or app where you want the same layout.

Try it: the Date Difference Calculator: days, months, years and weekdays between two dates, with the DATEDIF formulas.

More in How-to basics

Sources: Function behaviour and menu paths: Microsoft Support documentation for Excel. Method & sources

Spotted an error in this guide? Let us know.