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.

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 <a href="https://support.microsoft.com/en-us/office/-the-properties-of-the-message-have-been-changed-prompt-when-forwarding-replying-in-outlook-c42f5eec-382e-4521-bee4-72f7625460db?ui=en-US&rs=en-US&ad=US" title="https://support.microsoft.com/en-us/office/-the-properties-of-the-message-have-been-changed-prompt-when-forwarding-replying-in-outlook-c42f5eec-382e-4521-bee4-72f7625460db?ui=en-US&rs=en-US&ad=US" rel="ugc nofollow">"The properties of the message have been changed" prompt when forwarding/replying in Outlook . Thanks for your understanding and patience. Best Regards, Oliver

Hi all, We escalated this issue to the Outlook Team and the root cause has been found. The bug is specific to Outlook Desktop and the fix will be in an upcoming update. The build that is going out today does not have the fix ( Current Channel 2105 14026.20270 ). I expect the fix will be in the next major update after this. Once I know for sure the version of the fix and the estimated release date I will report back. I should have a better status update later today. Thank you ! I have noticed that I have this issue as well but I don't open my emails, I just preview them so it is not bothering me too much. Many of my managers do so they can have many emails open for comparisons and such. More and more are noticing they have the issue as they open their emails and not just preview them.

Users at my organization are reporting a similar problem. Our environment is using On-Premise Exchange (which was updated over the weekend) with user clients ranging from Outlook 2013 to Outlook 2019, most users are using the most recent, or close to most recent release of Outlook for their respective versions as updates are enabled for all users. The popup occurs only after starting a reply or forward for an email, for emails with and without attachments, but only for HTML messages. The issue is not being caused by plugins, and is reproduced even when starting the program in safe mode using Win + R "outlook.exe /safe". I have tried clearing the registry and the Trust Center option "Add properties to attachments to enable Reply with Changes" is not selected. The only workaround I've found so far is to use the reading pane and reply or forward emails with that. Since reading pane does not open the email in a new window, the window does not need to be closed, thus the pop-up will not occur. Note if users enable reading pane but still double click their emails to open them, then the popup will still be there.

The issue started about 3 weeks ago with a small group and while the number of affected users is steadily growing, with a billion** outlook users, its a small group. It's not a widespread issue or the forums would be blowing up with multiple long threads. The solutions are all over the board... which makes it hard to repro and no repro makes it hard to fix. ** that's a wild guess. I figure 50% of office users also use outlook... with a fair number using older versions. I don't how many office users there are. I disagree about this issue being a small group, how many users are following this thread, how many have viewed it, and how many of those users are admins who look after multiple users. It's not inconceivable that users have found this thread easily and utilized it to try and get the problem resolved, why would you start another thread when you can use this or view this one which was easy to find on google straight away when the problem first happened.

In addition to Replies in new windows automatically saving a blank draft, I am also getting automatic saves when drafting a new appointment in the calendar. Right click > New Appointment After a few seconds a notification comes up saying I have a overdue appointment, and it is blank. Then there is a blank entry saved on my calendar before I even start typing the entry. Can anyone else with this Reply/Forward issue (draft creation/properties changing notification) confirm this happening? Yes, we're getting the same issues. We now have 4 tickets open for issues with Outlook 365 Pro Plus: Properties have changed save dialog on replies/forwards Meetings immediately saving when clicking New Meeting/Appointment, causes blank meetings. Failed to upload attachments error: Failed to upload attachments to server (error 0x80070057). Unknown Error when trying forward some meetings All of these issues have come up very recently within the last few weeks.

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

Anonymous

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.

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.

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Answer accepted by question author

Anonymous

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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157 additional answers

Anonymous

2021-06-09T17:30:49+00:00

Hi all,

We escalated this issue to the Outlook Team and the root cause has been found. The bug is specific to Outlook Desktop and the fix will be in an upcoming update. The build that is going out today does not have the fix (Current Channel 2105 14026.20270). I expect the fix will be in the next major update after this. Once I know for sure the version of the fix and the estimated release date I will report back. I should have a better status update later today.

Thank you !

I have noticed that I have this issue as well but I don't open my emails, I just preview them so it is not bothering me too much.

Many of my managers do so they can have many emails open for comparisons and such.

More and more are noticing they have the issue as they open their emails and not just preview them.
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Anonymous

2021-06-09T14:04:13+00:00

Users at my organization are reporting a similar problem.

Our environment is using On-Premise Exchange (which was updated over the weekend) with user clients ranging from Outlook 2013 to Outlook 2019, most users are using the most recent, or close to most recent release of Outlook for their respective versions as updates are enabled for all users.

The popup occurs only after starting a reply or forward for an email, for emails with and without attachments, but only for HTML messages.

The issue is not being caused by plugins, and is reproduced even when starting the program in safe mode using Win + R "outlook.exe /safe".

I have tried clearing the registry and the Trust Center option "Add properties to attachments to enable Reply with Changes" is not selected.

The only workaround I've found so far is to use the reading pane and reply or forward emails with that. Since reading pane does not open the email in a new window, the window does not need to be closed, thus the pop-up will not occur. Note if users enable reading pane but still double click their emails to open them, then the popup will still be there.
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Anonymous

2021-06-09T13:29:14+00:00

The issue started about 3 weeks ago with a small group and while the number of affected users is steadily growing, with a billion** outlook users, its a small group. It's not a widespread issue or the forums would be blowing up with multiple long threads.

The solutions are all over the board... which makes it hard to repro and no repro makes it hard to fix.

** that's a wild guess. I figure 50% of office users also use outlook... with a fair number using older versions. I don't how many office users there are.

I disagree about this issue being a small group, how many users are following this thread, how many have viewed it, and how many of those users are admins who look after multiple users. It's not inconceivable that users have found this thread easily and utilized it to try and get the problem resolved, why would you start another thread when you can use this or view this one which was easy to find on google straight away when the problem first happened.
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Anonymous

2021-06-07T23:06:50+00:00
In addition to Replies in new windows automatically saving a blank draft, I am also getting automatic saves when drafting a new appointment in the calendar.

Right click > New Appointment
After a few seconds a notification comes up saying I have a overdue appointment, and it is blank. Then there is a blank entry saved on my calendar before I even start typing the entry.

Can anyone else with this Reply/Forward issue (draft creation/properties changing notification) confirm this happening?

Yes, we're getting the same issues. We now have 4 tickets open for issues with Outlook 365 Pro Plus:
1. Properties have changed save dialog on replies/forwards
2. Meetings immediately saving when clicking New Meeting/Appointment, causes blank meetings.
3. Failed to upload attachments error: Failed to upload attachments to server (error 0x80070057).
4. Unknown Error when trying forward some meetings
All of these issues have come up very recently within the last few weeks.
Was this answer helpful?

1 person found this answer helpful.

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