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I can't send emails for Outlook to OneNote. I get the following error.

Anonymous
2025-05-19T21:42:06+00:00

Error: "an unexpected host was loaded when attempting to perform silent auth: DOMException was thrown: 'SecurityError: Sandbox access violation: Blocked a frame at "https://www.onenote.com" from accessing a cross-origin frame. The frame being accessed is sandboxed and lacks the "allow-same-origin" flag.'"Date: 2025-05-19T21:37:23.868ZSession ID: dae81430-6469-4a10-a025-93aa1db16605

Microsoft 365 and Office | OneNote | For home | MacOS

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  1. Anonymous
    2025-05-20T14:57:12+00:00

    Dear Christopher Hennes,

    Thanks for posting in the Microsoft community.

    I understand that you're , and I'm sorry for the inconvenience this has caused.

    First, please confirm whether you're using the legacy "Send to OneNote" feature. If so, it's important to note that this feature was officially retired on March 5, 2025.

    By associating an email address with OneNote, users were previously able to send content directly to their notebooks by emailing it to ******@onenote.com. This was a convenient way to capture travel itineraries, receipts, confirmations, and quick notes on the go. For more information, kindly see this:  Use email to send notes to OneNote notebooks - Microsoft SupportYou can still send emails and meetings from Outlook to OneNote using the built-in integration. Here's how: Send emails and meetings from Outlook to OneNote - Microsoft Support

    I hope this helps. Please let me know if you need any further assistance.

    Best wishes,

    Similoluwa | Microsoft Community Support

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