"Message failed to send" Red Error box in Outlook 365 for Mac

Anonymous
2023-08-14T06:11:51+00:00

Hi everyone - has anyone had issues with sending emails using Outlook 365 for Macs? Especially a red error box that appears at the bottom (attached) and says "Message failed to send Open" The email is then stuck in drafts with the option to continue editing but it is simply frozen in drafts and the only way is to delete and try again. Alternatively, you can go to the webmail version of outlook, find the drafts folder and send from there. This has been happening on/off for several weeks now, no pattern, just happens occasionally.

This version of Outlook 365 is absolutely **** with so many issues

Outlook | MacOS | Legacy Outlook for Mac | For home

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  1. Anonymous
    2024-10-10T18:03:04+00:00

    The only solution I've found is to send it from the web version of Outlook. It should save in drafts so when you go to the web version you don't have to start over. I just keep a tab open on my browser now. It's not a great solution, but it works.

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  2. Anonymous
    2024-10-21T10:59:14+00:00

    Yep, same issue here, had it for over a year now. Says a lot that nothing has been done to fix this! It's a critical error — if you can't send an email, what's the point in using Outlook at all?! Shame on you Microsoft

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  4. Anonymous
    2024-12-01T05:46:39+00:00

    Spent an hour trying to reinstall the app with no luck. Reverted back to legacy version everything works fine immediately.

    From the top bar: Help> Revert to Legacy Version

    Microsoft- Get your act together

    Apple- Fix Mac Mail. Its absolute garbage.

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  5. Anonymous
    2024-12-03T17:27:47+00:00

    I fixed it. I went back to the Legacy version, and had no further issues. Hey Microsoft! I'm not your unpaid beta tester! Get your poop in group before you foist a product on us.

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