Why is Mac Outlook Legacy not working today?

Anonymous
2024-03-21T13:34:42+00:00

I am a support consultant for many customers. Getting a bunch of calls this morning (03/21/2024) about Legacy Mac version 16.8x and above not syncing.

If they switch to New Outlook, no issues. Online is also working.

Why would Legacy stop working today for some? Running Mac OS X 13.x and 14.x with same issue.

Please advise.

Outlook | MacOS | Legacy Outlook for Mac | For home

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  1. Anonymous
    2024-03-22T15:15:22+00:00

    We are dealing with the same issue(s) described above. Looking for a quick resolution. The "new" Outlook doesn't include custom "groups" for your contacts like legacy does.

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  2. Anonymous
    2024-03-22T15:15:09+00:00

    Hi All,

    Just an update on this incident.

    Title: Legacy Outlook for Mac users may be unable to connect to their Exchange Online mailboxes
    User impact: Legacy Outlook for Mac users may be unable to connect to their Exchange Online mailboxes.

    More info: Impact is specific to those who are on version 15.20 and builds 7409.15 or below. As the fix progresses throughout our safe deployment processes, admins can check if they're on builds 7409.16 or above to validate if they've received the fix or not by running the following cmdlet:

    Get-Mailbox TestUser | fl *version*
    The cmdlet produces an "AdminDisplayVersion" output which delineates which version a user is on.

    Current status: As we continue to monitor the fix deployment, we've assessed that the deployment process is taking longer than originally anticipated. We expect the aforementioned process to be completed by our next scheduled update.
    Scope of impact: Users on the legacy Outlook for Mac client that's on version 15.20 and builds 7409.15 or below may be impacted.
    Estimated time to resolve: We expect the deployment process to be completed by Friday, March 22, 2024, at 10:00 PM UTC.
    Root cause: A recent service maintenance change introduced a code issue that inhibits communication between legacy Outlook for Mac users and the Exchange Online service, which is resulting in the impact.
    Next update by: Friday, March 22, 2024, at 10:00 PM UTC

    Best Regards,

    Ashraf.

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  3. Anonymous
    2024-03-22T15:10:53+00:00

    Any updates on this we support alot of mac users who are not happy right now

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  4. Anonymous
    2024-03-22T15:03:50+00:00

    Hello Mac Outlook team, when will we have an update here? My Outlook Legacy ist still not working :(

    The New Outlook Surface is confusing and not really usable, at least to me. I hope that you will not switch off the Legacy option o.O

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  5. Anonymous
    2024-03-22T15:03:35+00:00

    I hope this isn't an attempt to force 'New Look' outlook on users. The functionality is still not there, the way I manage my work is totally screwed up now.

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