Gmail – How to Retain Threading and Prevent Stray Replies

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We have a domain based on Gmail. This question is for the within domain users.
Whenever a certain user replies to my email, it mostly creates a new thread of its own. For example, if I start an email chain with

subject: Hello World

Now, if this specific user replies to the email, then it mostly creates following new chain with the previous body inlined:

subject: Re: Hello World

My expectation is that the email should have remained clubbed as it happens for all the other users. BTW, this behaviour is consistent. Sometimes it happens after certain email replies.
In my Gmail > Settings > General > Conversation view is ON.

How to prevent this unwanted individual replies?

Best Answer

I found out the root cause, probably!

That email chain breaking was happening, when that particular person was sending me email from their Macbook by popping out the compose section.

Means, if you want to do that then you follow below steps:

  • Click on an ongoing email chain and press "reply" (or "reply all")
  • By default the "reply" section will be inline; however you click on the left side menu with left arrow button
  • It shows following options: "Reply to X", "Reply all" , "Forward", "Edit Subject", "Pop out reply"
  • The last option will pop out a dialog box for the reply

When the other user, selected the "Pop out reply", this issue was happening. This could also be specific to the Mac's chrome browser.

Now that user has left the team, so cannot reproduce this situation.