Outlook webpage refreshes whenever emails with attachments are opened or writing new emails

Anonymous
2025-02-01T20:16:02+00:00

Just as the title says, this began for the first time this morning. My Outlook webpage will refresh within seconds of opening any emails with attachments or opening up a new email to write regardless of email account or browser. I've tried on Microsoft Edge, Firefox, and my main browser, Chrome, to no avail. Have not found any solutions including clearing browsing history/cache/cookies, disabling any and all extensions, and even removing extensions from my browser entirely. I've also reset my password twice, restarted my computer, and don't know what to do from here.

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  1. Anonymous
    2025-03-07T07:10:23+00:00

    This issue occurs when authentication partially times out, such as when an attachment is being fetched in the background and fails with a 440 error. The current workaround is to sign out and sign back into your Microsoft account.

    It’s frustrating that end-users constantly have to provide detailed instructions and reproduction steps when these issues should be identifiable within your code. It feels like all responsibility is shifted onto users while little effort is made on your end to proactively resolve them.

    Microsoft still struggles with proper session management. For example in Teams, even after a session has expired across all devices, users may still receive mobile notifications, even though re-authentication is required. An absolutely trash implementation.

    This issue seems to extend here as well. The session appears to be in a partially logged-in/logged-out state: you can browse and refresh your emails, but when attempting to open one and fetch an attachment, an error occurs. The Web App then attempts to resolve it by refreshing the page, assuming the sign-in page will appear if the session has expired.

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  2. Anonymous
    2025-03-07T12:25:36+00:00

    I have the same issue in Chrome browser. Clearing chrome cache temporarily fixed the issue for 3 days now it's back.

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  3. Anonymous
    2025-03-07T12:34:36+00:00

    This issue is a real pain for my organization. Lots of our end users struggle with simple tasks like clearing browser cache. It works, but it keeps coming back over and over for the past month or so. Constant helpdesk calls about this.

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  4. Anonymous
    2025-03-07T13:19:03+00:00

    Hello!

    I am also experiencing this issue.

    My colleagues and I use different devices: I work on Windows 11, and my colleagues use Macs of various generations. We all use the web version of Outlook, which is constantly open in Chrome and Safari browsers.

    Clearing cache and site data helps only partially and temporarily, for a few hours or a day.

    During this time, Chrome has been updated several times, but this did not solve the problem.

    The issue does not depend on add-ins, as not everyone who has this problem has Outlook add-ins.

    I also suspect that the problem is related to authentication.

    The problem started on February 1, 2025, and no solutions are visible so far.

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  5. Anonymous
    2025-03-07T15:45:56+00:00

    This worked for me!! THANK YOU!!!

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    6 people found this answer helpful.
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