This is a common question I have answered more than once here and it is time to revisit my accepted solution from August of 2023. In this example, I will show you how you can reference a saved image you want to include as an embedded/inline image and include in a Send an email (V2) action from either OneDrive or SharePoint - the formats are slightly different. Goes without saying, make sure the permissions on your image allow others to view (if applicable).
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