Wooohoooo! Works great.
I just ran a quick test that triggers a new flow whenever an email arrives in Outlook for Office 365. It then exports that email, convert it to pdf and send it as an attachment by yet another email. (You can do anything with the PDF including saving in SharePoint, DropBox, Onedrive, etc)
Rich formatting comes through as do attachments, which are in turn also converted to PDF and merged with the same email.

I didn't sport similar 'Export' commands for the other email providers, so fingers crossed that they add those as well.
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