Hello
I'd like some help on how finish off a Flow I've started, please. I'm currently getting a list of emails that are sent from a certain email address:

That all works fine, but I'd like to lookup the Message ID of these emails in an Excel Table (Stored in OneDrive - table contains columns titled: SentDate, EmailID, Subject, Body Preview, To). If the message ID is there, then nothing happens, but if the message ID isn't present in the excel sheet, to add the relevant information in.
I can't quite get it to work. I only seem to be able to add all the emails in again, or get caught in a loop where it's adding every email, for every row.
Thanks