How to identfy email chain in logic app ?

Question

Hello Team,

I am using Logic apps for one of my client in which we forward the email using logic apps to thier respective department based onto the body of the mail and I also need to store the emails into a database. I am able to do the above things easily .

But Now when someone reply to those mails , its becomes a chain of mail . Now In the storeage field instead of storing the mail as new mail. I need to update the previously stored mail with the new body or have a coomnon key atleast, so that I can maintain the chain in the database.

But In the logic app , I am not able to identify is this a new mail or a reply to one of the previous mail.I am also not able to find any such common field with the parent mail and the reply mails. The CONVERSTION_ID and MESSAGE_ID field are also different for the parent and reply mail respectively.

Thanks in Advance !