"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

Locked Question. This question was migrated from the Microsoft Support Community. You can vote on whether it's helpful, but you can't add comments or replies or follow the question.

0 comments
Answer accepted by question author
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

Was this answer helpful?

20+ people found this answer helpful.
0 comments

157 additional answers

Sort by: Most helpful
Most helpful Newest Oldest
  1. Anonymous
    2021-06-20T23:39:01+00:00

    Hi all,

    The fixed build is now available.  In Outlook click File, Office Account, Update Options, Update Now.

    The fixed build is 14026.20308, refer to Update History, Update history for Microsoft 365 Apps (listed by date) - Office release notes | Microsoft Docs.

    Thanks for your understanding and patience.

    Oliver

    Was this answer helpful?

    3 people found this answer helpful.
    0 comments
  2. Diane Poremsky MVP 17,526 Reputation points MVP Volunteer Moderator
    2021-06-08T00:56:48+00:00

    They are investigating it. I believe support is also watching this thread (they have the link to it.) I'll see if I can find out the status.

    Was this answer helpful?

    3 people found this answer helpful.
    0 comments
  3. Anonymous
    2021-06-03T00:20:16+00:00

    Just adding to the pile here. We're a Microsoft partner, and we have two clients with the same issue. We've tried:

    • Disabling add-ins
    • Quick Repair
    • Online Repair
    • All updates (Windows and O365)
    • Outlook.exe /safe
    • Removing OSTs
    • New Outlook profile
    • New Windows profile
    • *All suggestions in this post up to 6/2/21 8pm

    Was this answer helpful?

    3 people found this answer helpful.
    0 comments
  4. Diane Poremsky MVP 17,526 Reputation points MVP Volunteer Moderator
    2021-05-22T03:54:33+00:00

    Are you using the Adobe Send and Track addin?

    Do you have the option enabled to add properties to attachments to reply with changes in File > Options > Trust Center Attachment handling.

    Was this answer helpful?

    2 people found this answer helpful.
    0 comments