There was this reply to a similar question a while back:
Seems like more of a workaround rather than what you are looking for, but it might do in the mean time.
If you need to discriminate on the subject line you can add a condition in Flow so that it only proceeds if the condition is satisfied.
I have created an entry in the 'Flow Ideas' facility. If you need the ability to get to the full email (in MSG or EML) format so it can be archived, or passed on to other services, then please upvote the idea.
I just wanted to update this thread.
It is now possible to do this within flow using Parserr. We have just joined the Flow community and wanted to thank everyone in the flow team for making this possible:
Parserr allows you to turn incoming emails into useful data to use in various other 3rd party systems.You can use to extract anything trapped in email including email body contents and attachments.
Have a look here: https://parserr.com
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