E-mail addresses disappear in the New Outlook when I reply or forward an e-mail

Anonymous
2025-02-25T00:59:50+00:00

I have a problem with the New Outlook when I reply or forward an e-mail. Let me describe how the New Outlook hides e-mail address.

Let's say I receive an email with this structure:

From: Person1 (Person1 email address)

Sent: To: Myself (my email address)

Cc: Person2 (Person2 email address); Person3 (Person3 email address); Person4 (Person4 email address)

When I hit "Reply", "Reply all" or "Forward", the text in the e-mail body which quotes this email is being re-formatted and shows the following:

From: Person1
Sent: To: Myself
Cc: Person2; Person3; Person4

So the New Outlook cuts or hides the e-mail addresses of the Sender and Recipients. The recipients of my email will not be able to reply to specific people in the e-mail thread because the New Outlook hides the addresses. I have tried to reinstall the app and reset the New Outlook settings, but it didn't help.

Outlook | Windows | New Outlook for Windows | For home

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Anonymous
2025-05-15T15:48:18+00:00

This was a known issue, and its been fixed in the following builds in Production for our users. If you don't see these builds in your new Outlook, you'll see these soon, within a week or two at most. We release new builds in production every week.

New Outlook > Settings > General > About Outlook :

Microsoft Outlook Version: 1.2025.506.300 (Production) Client Version: 20250509011.02WebView2 Version: 136.0.3240.64 (Stable)Release Channel: Targeted Release

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  1. Anonymous
    2025-02-25T03:33:53+00:00

    Hi PullmanZV

    Good day! Thank you for posting to Microsoft Community. We are happy to assist you.

    I am truly sorry for the inconvenience this issue has caused you. Based on the description, I understand that you have an issue with new Outlook when you reply/forward an email. When composing the reply/forward message, the email body hides the original message's sender/recipient email address that it quotes.

    To further clarify the issue, please kindly confirm the following information.

    1. Are you using a M365 work/school account, a Microsoft personal account(hotmail.com/live.com/outlook.com), or a 3rd-party email provider account?
    2. Does the same issue happen in Outlook on the web as well?
    3. Please kindly confirm whether the email message is composed in HTML or Plain Text format. (Settings > Mail > Compose and reply)

    Please understand that our initial response may not always resolve the issue immediately. However, with your help and more detailed information, we can work together to find a solution.

    Your understanding and cooperation are greatly appreciated.

    Sincerely,

    Roger Shen

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  2. Anonymous
    2025-02-25T05:26:02+00:00

    Thanks for your reply, Roger,

    1. I'm using M365 work account
    2. The issue doesn't happen in Outlook Web
    3. My emails are composed in HTML format. However, I've just tried Plain Text, and the issue persists with this option as well.

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  3. Anonymous
    2025-02-25T08:55:39+00:00

    Hi PullmanZV,

    Good day. Hope you are doing well.

    Thank you for your prompt reply. I understand that the issue is specific to the new Outlook desktop client. May I know what is the version of new Outlook that you are using? (Settings > General > About Outlook)

    Furthermore, please kindly confirm whether the issue happen to all the emails that you have received.

    Next, please kindly check whether this registry key is set on your computer for the new Outlook client.

    Computer\HKEY_CURRENT_USER\Software\Microsoft\Office\16.0\Outlook\Options

    DisableEmailAddressesInReplyHeaders

    If so, please kindly change the value DWORD:1 to 0.

    If the issue persists, since it is only happening in the new Outlook desktop client, and Microsoft has a dedicated in-app technical support team, it is suggested to open a support request directly by going to Help > Support. Microsoft's back-end support team can check the advanced logs and investigate the situation further. Due to the limited permissions and access resources of our community moderators, we are unable to collect certain types of registration information in public forums for this reason and for the privacy of our users' data.

    Thank you for your precious time and kind understanding. 

    Sincerely,

    Roger Shen

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  4. Anonymous
    2025-02-25T23:01:56+00:00

    Hi Roger,

    Thanks for your quick reply.

    1. The version of the new Outlook I'm using:

    Microsoft Outlook Version: 1.2025.219.400 (Production)

    Client Version: 20250221002.08

    WebView2 Version: 133.0.3065.82 (Stable)

    1. Confirm that the issue happens to all e-mails. I've tried many from various recipients within and outside of our company.
    2. There was no this registry key in the specified location, so I've created it with 0 value. Restarted the computer. The issue persists.
    3. I'm contacting support currently

    Appreciate your help and suggesting possible solutions

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