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Is Outlook Compatible with macOS Big Sur 11.7.10? Solutions & Fixes
Question details
The user wants to know if Microsoft Outlook is compatible with macOS Big Sur 11.7.10 and how to run it since current Microsoft 365 updates no longer support this OS.
- Product
- Microsoft Outlook (Office for Mac)
- Device & OS
- macOS Big Sur 11.7.10
- Scenario
- Installing or updating Microsoft Outlook on a Mac running an older operating system.
- Observed behavior
- Current Microsoft 365 updates cannot be installed on macOS Big Sur, preventing users from accessing the latest Outlook desktop application.
Click the Apple menu and select 'About This Mac' to confirm you are running macOS Big Sur 11.7.10 before attempting these solutions.
Install an Older Office for Mac Version
Download a legacy build of Microsoft Office that still supports macOS Big Sur.
Microsoft only supports the three most recent major versions of macOS. For Big Sur, the last officially compatible Office for Mac release is version 16.77.
Open your web browser and navigate to the official Microsoft Office for Mac Update History page.
Scroll through the release history and find version 16.77 (or any version below 16.78), which is the final release that fully supports macOS Big Sur.
Click the download link for the standalone Outlook installer or the full Office suite package for that specific version.
Run the downloaded .pkg file and follow the on-screen instructions to install Outlook on your Mac.
Use Outlook on the Web
Access your emails through a web browser without installing any desktop software.
Upgrade macOS to a Supported Version
Update your Mac to macOS Monterey or newer to regain full support for the latest Microsoft 365 applications.
Use WPS Office as a Lightweight Alternative for Mac
If Microsoft 365 apps are no longer supported on your older macOS, WPS Office offers a free, lightweight, and highly compatible alternative. Enjoy seamless document creation on older Mac models without heavy system requirements.
- 1. Download WPS Office: Visit the official WPS Office website and download the Mac version installer.
- 2. Install on Your Mac: Open the downloaded .dmg file and drag the WPS Office icon into your Applications folder.
- 3. Start Creating: Launch WPS Office from Launchpad to easily edit Microsoft Office formats without compatibility issues.
Frequently Asked Questions
Why did Microsoft stop supporting macOS Big Sur for Outlook?
Microsoft's standard policy is to support only the three most recent major versions of macOS. Once newer operating systems like macOS Sonoma are released, older versions like Big Sur fall out of the official support window for new application updates.
Can I still receive security updates if I use an older version of Outlook?
No. Older versions of Office for Mac (like 16.77) that run on Big Sur are considered legacy and will no longer receive new security updates or feature enhancements from Microsoft.
Will my current emails be deleted if I switch to Outlook on the web?
No, your emails are safely stored on your email server (such as Exchange or Outlook.com). Accessing them via the web browser simply displays the exact same data without altering or deleting it.
How do I know if my Mac can upgrade past Big Sur?
You can check Apple's official compatibility lists online for macOS Monterey or newer. Generally, Macs introduced in 2015 or later support at least macOS Monterey.
