outlook on my MAC is not working

josh levy 0 Reputation points
2026-09-10T15:16:58.39+00:00

My outlook email is not working on my MAC or iPhone

Microsoft 365 and Office | Other
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  1. Manoel Barros 21,735 Reputation points Independent Advisor
    2026-09-10T16:05:35.71+00:00

    Hi!

    1. Is your email personal, corporate, or educational? 

    Before proceeding, check if your account has been blocked:

    https://support.microsoft.com/en-us/office/unblock-my-outlook-com-account-f4ad2701-d166-4d8b-8a6a-9af2a1f8a4c4

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  2. AI answer

    2026-09-10T15:17:16.0466667+00:00

    Try these checks in order:

    1. Verify Outlook is online on the Mac.
      • In Outlook, open the Outlook menu.
      • Make sure Work Offline is not checked.
    2. Check whether the Mac is connected to the mail service.
      • In Outlook, go to Tools > Accounts.
      • Look at the Exchange account status indicator. If the indicator is orange, there is a connection problem.
      • If mail works in Outlook on the web, the issue is likely with the app connection rather than the mailbox itself.
    3. Confirm the network connection.
      • Open a web browser and verify that websites load.
      • If on a work or school network, a network or server issue may be blocking access.
    4. If Outlook on Mac is connected but not syncing, empty the cache for the affected Exchange folder.
      • Warning: this deletes any information in that folder that is not synchronized with the Exchange server, including contacts' mail certificates.
      • In the navigation pane, Ctrl+click or right-click the Exchange folder.
      • Select Properties.
      • On the General tab, choose Empty Cache.
      • Outlook will download the items again from the Exchange server.
    5. If the account cannot connect at all, verify account settings.
      • In Tools > Accounts, select the account.
      • Confirm the account credentials and Exchange server details are correct.
      • Outlook for Mac supports Exchange Server 2010 Service Pack 2 or later, or Microsoft 365 for business.
    6. If the issue is on iPhone as well, test the mailbox in Outlook on the web.
      • If Outlook on the web also fails, the mail server or account may be unavailable.
      • If Outlook on the web works but both devices do not, the issue is likely device app sync or connection related.
    7. For a current known sync issue affecting Outlook for Mac and Outlook Mobile, this workaround is listed:
      • Open the Outlook web app.
      • Go to the People pane.
      • Select Favorites under the mailbox.
      • Delete all Favorites contacts.
    AI-generated content may be incorrect. Read our transparency notes for more information.

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