Fixes or workarounds for recent issues in Outlook for Mac
Applies To
Outlook for Microsoft 365 for Mac Outlook 2024 Outlook 2024 for Mac Outlook 2021 for Mac Office for business Microsoft OfficeLast updated: March 2025
Outlook for Mac features, add-ins, and known issues
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[INVESTIGATING]Â Inbox shows incorrect number of unread items in Outlook for Mac
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[FIXED] Outlook for Mac stops syncing when Conditional Access is enabled
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[FIXED] Some options are grayed out in the attachment dropdown menu in legacy Outlook for Mac
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[FIXED] Unable to add files as an attachment to emails in Outlook for Mac
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[BY DESIGN] Unable to use the Contact Support option from the Help Menu in Outlook for Mac
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[FIXED] Microsoft 365 for Mac users in the Beta channel are not offered app updates
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[BY DESIGN] Follow Up flag does not work in outgoing emails in legacy Outlook for Mac
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[WORKAROUND] IMAP Yahoo and AOL accounts might experience issues with re-syncing folder content
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[FIXED] Selecting Reply, Reply All, and Forward buttons is not working as expected
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[FIXED] Outlook for Mac stops responding when using the search feature
Note:Â If you can't find your specific issue in the list below, please try updating Outlook for Mac to the latest version. For more information, go to Update Office for Mac automatically.
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[FIXED] Attachments missing from emails when using macOS Big Sur
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[FIXED] Can't add M365 accounts in Outlook for Mac when the macOS language is set to Turkish
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[FIXED] Can't create new signatures in new Outlook for Mac and existing signatures are missing
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[FIXED] Outlook stops responding when viewing Uber receipt emails and some other emails with tables
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[FIXED] To, CC, and BCC fileds are shortened after updating Outlook for Mac
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[FIXED] Search in Outlook for Mac returns no results after installing macOS Monterey 12.1
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[FIXED] The new Outlook for Mac users cannot access Online Archive mailbox
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[FIXED] Outlook for Mac crashes unexpectedly on startup or during mail synchronization
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[FIXED] Error -17099 or -3253 when trying to send an email with an attachment
Changed functionality and blocked or discontinued features
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New location for key functions and direct access to other Microsoft 365 apps in Outlook for Mac
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Legacy Outlook for Mac 2011 does not work with macOS 10.15 Catalina
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Sending meeting updates with REST calendar sharing feature in legacy Outlook for Mac
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Categories no longer appear in the sidebar of individual calendars in legacy Outlook for Mac
Need more help?
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To report issues or provide feedback, simply go to Help > Contact Support in Outlook for Mac. For more information, see |
Have a feature request?
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To suggest new features in Outlook for Mac, go to Help > Give Feedback. We're listening. |