Reply All does not work showing "The operation failed" error

Anonymous
2022-02-06T18:14:06+00:00

Using Microsoft Outlook version 2201 (Preview Channel) I get the same error on two different computers when I use Reply All:

The operation failed. The messaging interfaces have returned an unknown error. If the problem persists, restart Oulook.

I already tried to restart outlook, change profile, create another profile, but the error continues.

Creating a new profile I also created a new .OST file, so I would exclude that the issue is a corrupt file.

The error does not show when I am connected to a personal Hotmail account. The error only shows up on my work account.

Because it happens now on two different computers (desktop and notebook) it does not seem something corrupted at the PC level.

Additional note: also ReplyAll from VBA (using Outlook.MailItem) failed, in that case without showing the dialog box UI.

The Reply and Forward buttons and corresponding VBA commands work regularly.

I also monitored with Process Explorer to see whether there are errors accessing Registry or File System, but I didn't see any particular error when I click "Reply All".

In the Event Viewer I have this entry in the Microsoft Office Alerts:

Microsoft Outlook

The operation failed.  The messaging interfaces have returned an unknown error. If the problem persists, restart Outlook.

P1: 301670

P2: 16.0.14827.20186

P3: 

P4: 0x80004005

My only suspect at this point is that there is something that happens with version 2201, but I don't know how to get more details about the error to investigate deeper. Any help would be welcome.

Outlook | Windows | Classic Outlook for Windows | For home

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  1. Anonymous
    2022-03-23T18:47:35+00:00

    Dutch,

    This issue will require creating a new Outlook profile to overcome, Create an Outlook profile (microsoft.com).

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  2. Anonymous
    2022-03-23T18:21:26+00:00

    I have had this problem on two computers through several preview channel releases, and the failure occurs on release 2203.

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  3. Anonymous
    2022-02-23T13:36:18+00:00

    Reply All is still working for me today. I'll post here if the situation changes. If you want to reference my case with Outlook in-app support, now closed, the case number is 1663610532. Jeff.

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  4. Anonymous
    2022-02-23T10:43:25+00:00

    I have bad news.

    Yesterday with the new profile the Reply All feature worked.

    Now it no longer works – I’m still using the new profile I created yesterday, which is now fully synchronized.

    When yesterday it was working, the synchronization was still in progress.

    I also asked Microsoft to reopen the ticket.

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  5. Anonymous
    2022-02-22T09:18:55+00:00

    I also confirm that creating a new Outlook profile now solves the problem.

    My attempt to do the same more than two weeks ago was not working.

    Based on the test made today:

    • A new profile works
    • Copying an existing profile does not work
    • Switching back to the old profile still does not work, just the new profile works

    I did not receive any feedback from Microsoft support yet, I still have my ticket open.

    Marco

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