"The properties of the message have been changed" prompt when forwarding/replying in Outlook

Anonymous
2021-05-21T21:28:23+00:00

When users open a message in its own window that has a pdf attachment and replies or forwards the message; when they close the original window, outlook prompts "The properties of the message <email_subject> have been changed. Want to save your changes to this message?"

Steps to recreate this issue:

  • Message must have pdf or txt attachment
  • Open the original message in its own window
  • Reply-to or forward the message
  • Closing original message that was previously opened in its own window

Attempts to disable add-ins or running outlook in safe-mode do not resolve this issue.

Outlook | Windows | Classic Outlook for Windows | For home

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Anonymous
2021-06-16T08:16:59+00:00

Hi All，

First, apologize for the inconvenience caused by this problem in Outlook Client. Microsoft has realized this issue and the dedicated outlook teams are working on this problem to fix it. It is a known issue in the current Outlook Clients, and a fix will be released to Office version 2106 on 2021/6/17. For the affected users please navigate to Outlook Web App as temporary workaround and wait for the new fix release with some more patience, thanks. For more details, please refer to "The properties of the message have been changed" prompt when forwarding/replying in Outlook.

Thanks for your understanding and patience.

Best Regards,

Oliver

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  1. Anonymous
    2021-06-15T15:55:19+00:00

    I just applied the update to 2105 (Build 14026.20270 Click-to-Run) and it is still an issue.

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  2. Anonymous
    2021-06-15T19:29:17+00:00

    If you get the Office Insider Version 2106 (Build 14131.20012) the problems go away.

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  3. Anonymous
    2021-06-16T06:05:30+00:00

    I have the exact same issue.

    Is there a solution already?

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  4. Anonymous
    2021-06-16T07:11:55+00:00

    We had the same problem with one of our end customers.
    Customer uses an Exchange 2019 OnPrem with Hybrid Exchange Online. MS365 Office Apps.

    The error occurred with us with the app version 2015 Build 16.0.14026.20246, published May 24th, 2021.

    After checking again and automatic Office apps updates to version 2105 Build 14026.20270. Released June 8th, 2021 the problem no longer occurs.

    Only the update helped in our case.
    We have not made any changes to the client (deinstallation & installation) or Exchange changes.

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