How To Revert To Old Outlook On Mac – Mac Old Outlook Reversion Process

Going back to the old Outlook on Mac involves turning off the redesigned interface from the Outlook menu dropdown. If you have recently updated Microsoft Outlook and dislike the new look, you are not alone. Many users prefer the classic layout for its simplicity and familiarity. This guide will show you exactly how to revert to old Outlook on Mac with clear steps.

The new Outlook design rolled out in 2024 brought a unified interface across devices. But some features moved or changed. You might find the new version slower or harder to navigate. The good news is that Microsoft includes a toggle to switch back. You do not need to uninstall anything or reinstall an older version.

This article covers the quick method, troubleshooting tips, and answers to common questions. By the end, you will have your classic Outlook back in minutes. Let us start with the main steps.

How To Revert To Old Outlook On Mac

To revert to the old Outlook on Mac, you use a built-in toggle inside the app. Microsoft added this option for users who prefer the previous design. The toggle is located in the Outlook menu at the top of your screen. Follow these steps carefully.

Step 1: Open Outlook And Locate The Menu

Launch Microsoft Outlook on your Mac. Make sure you are on the latest version that includes the new interface. Look at the top-left corner of your screen. You will see the Apple logo, then the app name “Outlook.” Click on the word “Outlook” in the menu bar.

Step 2: Find The Toggle Option

In the dropdown menu, look for an option labeled “New Outlook.” It is usually near the bottom of the list. If you see a checkmark next to it, that means the new interface is active. Click on “New Outlook” to uncheck it. This action will switch you back to the classic design.

Step 3: Confirm The Switch

A pop-up window may appear asking you to confirm. Click “Continue” or “Use Classic Outlook.” The app will restart automatically. When it opens again, you will see the old layout with the traditional toolbar and sidebar.

Step 4: Check Your Settings

After the restart, verify that the change worked. Look at the top menu bar again. Click “Outlook” and see if “New Outlook” is unchecked. If it is, you are now using the classic version. You can also check the layout—old Outlook has a separate reading pane and a different folder list.

That is it. The entire process takes less than a minute. But sometimes the toggle does not appear or the switch fails. Let us look at common problems and solutions.

Common Issues When Reverting

Some users report that the “New Outlook” option is missing. Or the app does not switch back after clicking. These issues usually have simple fixes. Here are the most frequent problems and how to solve them.

Toggle Missing From The Menu

If you do not see “New Outlook” in the dropdown, your version may not support the toggle yet. Microsoft rolls out updates gradually. Check for updates in the Microsoft AutoUpdate tool. Go to “Help” > “Check for Updates.” Install any pending updates and restart Outlook. The toggle should appear after updating.

App Does Not Restart After Switching

Sometimes Outlook freezes or does not restart after you click the toggle. Force quit the app by pressing Command+Option+Esc. Select Outlook and click “Force Quit.” Then reopen Outlook. It should now be in classic mode. If not, try the toggle again.

Switch Reverts Back To New Outlook

A few users find that after a few days, Outlook goes back to the new design. This can happen if your organization pushes settings through Microsoft 365. Check with your IT department if you use a work account. For personal accounts, make sure you are not signed into multiple profiles that override settings.

Alternative Methods To Get Old Outlook

If the toggle method does not work, there are other ways to revert. These involve reinstalling an older version or using terminal commands. Use these only if the toggle fails completely.

Reinstall An Older Version

You can download an older version of Outlook from the Microsoft website. But this is risky because older versions may lack security updates. Microsoft does not officially support this method. If you choose to do it, uninstall the current Outlook first. Then install the older package. Remember to turn off automatic updates to prevent re-updating.

Use Terminal To Disable New Outlook

Advanced users can use Terminal commands to force the classic interface. Open Terminal from Applications > Utilities. Type the following command and press Enter:

defaults write com.microsoft.Outlook NewOutlookEnabled -bool false

Then restart Outlook. This command changes a hidden setting. To revert back, change “false” to “true.” Be careful with Terminal—typos can cause issues.

What Changes When You Revert

Switching to the old Outlook changes several things. The interface looks different, and some features move. Here is what you can expect.

  • The toolbar returns to the top with icons like Send/Receive and Archive.
  • The folder list on the left shows all mailboxes and subfolders.
  • The reading pane is on the right by default, but you can move it.
  • The ribbon menu is back with tabs like Home, Send, and Folder.
  • Calendar and contacts open in separate windows instead of tabs.

Some new features will be missing. For example, the unified inbox that combines multiple accounts disappears. You will see separate folders for each account. Also, the new search bar at the top changes to the old search field.

Pros And Cons Of Old Outlook

Before you revert, consider the trade-offs. The old Outlook has advantages and disadvantages.

Pros

  • Familiar layout for long-time users.
  • Faster performance on older Macs.
  • More customization options for toolbars.
  • Separate windows for calendar and contacts.

Cons

  • No unified inbox for multiple accounts.
  • Missing some new features like inline replies.
  • Older design may look dated.
  • May not receive future updates for new features.

Think about what matters most to you. If speed and familiarity are key, revert. If you want the latest features, consider staying with the new version.

How To Switch Back To New Outlook Later

If you change your mind, you can enable the new Outlook again. The process is the same. Click “Outlook” in the menu bar. Select “New Outlook” to check it. The app will restart with the new interface. Your settings and data remain intact.

You can switch back and forth as many times as you want. There is no limit. Just remember that each switch restarts the app.

Frequently Asked Questions

Can I Revert To Old Outlook On Mac Without Losing Emails?

Yes, reverting does not delete any emails, contacts, or calendar items. It only changes the interface. All your data stays safe.

Why Is The “New Outlook” Option Grayed Out?

This usually happens if your Microsoft 365 admin has disabled the toggle. Contact your IT department. For personal accounts, check for updates or reinstall Outlook.

Does Reverting Affect My Outlook Settings?

Some settings like signatures and rules may carry over. But layout preferences like pane position will reset to default. You may need to adjust them again.

How Long Does Microsoft Support The Old Outlook?

Microsoft has not announced an end date. But they encourage users to adopt the new version. Eventually, the toggle may be removed. Keep an eye on official announcements.

Can I Use Both Old And New Outlook On The Same Mac?

No, you can only use one version at a time. The toggle switches between them. You cannot run both simultaneously.

Final Thoughts On Reverting

Reverting to the old Outlook on Mac is simple when you know where to look. The toggle in the Outlook menu is the fastest way. If it does not work, updates or Terminal commands can help. Remember that the classic layout may lack some new features but offers stability and familiarity.

Take a few minutes to try the switch. You can always go back to the new version if you prefer it. The choice is yours. Now you know exactly how to revert to old Outlook on Mac without stress.

If you run into issues, check your version and update Outlook. Most problems are easy to fix. Share this guide with coworkers who also miss the old design. They will thank you for the help.

One last tip: after reverting, explore the classic toolbar. You might find options you forgot about. Customize it to match your workflow. The old Outlook is still a powerful tool for managing email and calendar.

Thank you for reading. We hope this article made the process clear. Go ahead and make the switch today.