Testing... replying.
Now, we need a "different" person to reply here.
You will see that my replies and theirs will be on the same "thread".

What e-mail are you using? Gmail (on the web)? Mozilla Thunderbird?

And... is it getting threaded in mutt?

Hey guy, My wife didn't like the hearts!!! (kidding).

Good to hear that it worked well.

If anybody else "engage" on this post, you'll see that their email will be chained on your mutt.

Here is night, so good night!

And thanks for helping with the tests.