"get outlook mail messages" and reply of a mail

[Tro]

Hello guys,
I’m using “Get Outlook Mail Messages” activity to get Outlook mails subjects. Now I need to identify which mail is the reply of other to organize them in a excel.

My question is how I can do that, because I get the Uid, but what I need is message-id and references (https://cr.yp.to/immhf/thread.html) or if anyone has another solution, I would be happy to try it.