on modern macOS releases like Ventura or Monterey. Users on modern systems should typically use version 16.78.2 or later. Microsoft Learn Download Options Official Microsoft Download Center: The package Microsoft_Outlook.pkg (approx. 276.3 MB) can be found at the Microsoft Download Center This download is intended for eligible Office 365/Microsoft 365 subscribers App Store: You can find the latest version on the Mac App Store
This version is known to have issues on newer macOS versions like Monterey (12.7.1) , Ventura , and Big Sur . Users on these systems may find that version 15.6.1 fails to open or sync correctly.
If you have previous identities:
Microsoft Outlook version for Mac is a legacy release belonging to the Office 2016 for Mac
Download if:
If you need a full offline installer:
Before clicking any download link, it is crucial to understand what makes this version special. Outlook 15.6.1 is not the newest release—in fact, it is several years old. However, it remains relevant for three primary scenarios: Microsoft Outlook 15.6.1 For Mac Download
Prior to 15.6, indexing and search were painfully slow on large mailboxes. This update noticeably reduced memory overhead and improved search responsiveness (though still slower than modern Outlook).