However, like all programs, there will always be the occasional problems that just dont go away.

So lets get straight to the topic, shall we?

What Triggers The Operation Failed Error on Microsoft Outlook?

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The attempted operation failed.

If you are using an outdated version, you are most likely to face the attachment oops message.

Check out our recent article onblock a sender by email address in Outlook.

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Outlook needs access to the .pst files to store local copies of its various data.

The drafts folder saves messages that havent yet been completed or have to be sent later on.

Due to a software glitch in Outlook, many users experience the attachment oops message.

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Here are the solutions for Microsoft Outlook Operation Failed error:

1.

Update Office/Outlook

Microsoft regularly updates Outlook to improve its stability, add new features and squash bugs in it.

Go and check our other article onOutlook not working on WiFi.

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In that case, you better run Outlook in non-compatibility mode by turning off the compatibility option from itsPropertiessettings.

Find out how to fixOutlook signature not showing images.

Disable Add-ins

Sometimes two or more add-ins on Outlook can conflict with each other.

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To run Outlook in safe mode, PressWindows Key+R& typeoutlook.exe /safe.

This can lead to causing an error in Outlook if those softwares mistakenly flag the attachment as harmful.

Check out the easiest way toenable read receipts in Outlook.

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If not, move on to the next step.

It happens due to a bug related to the Drafts folder.

This is either stored online or locally.

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As a result, Outlook will show Operation failed attachment error.

Then opt for Mail program shown in the picture below.

Afterward, follow the above-mentioned 3 to 8 steps accordingly.

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Apply the Correct Configuration in Outlook

Microsoft Outlook lets you use multiple profiles in one utility.

The PST files are stored locally or on a server if youre using a corporate data pipe.

But using the built-in utility is the best method.

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Clean booting Windows can address this problem.

InCached Mode, a copy of your mailbox is saved on your box locally.

This copy provides quick access to your Outlook user data and is frequently updated with the Exchange server.

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You should change the connection mode with the exchange so that solve this matter.

In that case, youll need to delete the conflicting rule from your Outlook profile.

Alternatively, you’re able to delete all the rules in all email accounts in your Outlook app.

Why is Outlook not uploading an attachment?

Outlook might not upload an attachment based on the prefs in sharing preferences.

you’re able to change your Outlooks sharing preferences by navigating toMail > Attachments.

How do I delete an email that is stuck in my inbox?

To delete an email stuck in Outbox, Go to theSend/Receivetab and clickWork Offline.

After that, switch to Outbox, right-snag the message and selectDelete.

What is the ideal attachable file size limit for Outlook?

Hopefully, this write-up will fix this annoyance for you in no time.