Hi @Anonymous ,
Would you please explain more details about your requirement?
Do you want to get only the reply email (If It is a forward email and contain the previous email content) when an email arrives?
If yes, you could add a special string such as End at the end of the body of the reply in the forward email, and than you could split the body in the flow.
The screenshot of the flow should as below:

And the screenshot of the flow should as below:

Expression in the Compose 2 as below:
first(split(outputs('Compose'),'End'))
The flow would run successfully as below:

Best regards,
Alice
Community Support Team _ Alice Zhang
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