How to remove an email from conversation group in Outlook?

Emails in a conversation contain the same subject ignoring the default prefix of "re", "fw", etc. Therefore, if we change an email’s subject line, this email will be removed from the specified conversation.

1. In the "Mail" view, double click to open the email that you want to remove from the specified conversation.

2. Now the email is opening in the Message window. Please click the button to expand the message header. See screenshot:

Note: In Outlook 2013 or earlier versions, the message header displays completely by default. Please skip to next step directly.

3. Now you can change the email’s subject line as you need. After changing, please save the email and close the message window.

When you return to the message list, you will see the specified email has been removed from the conversation already. See screenshot:

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