@Feelenjoy
Create a SharePoint list with column - Message ID.
From your existing flow, write your message IDs into this column if they do not exist.
Create a scheduled flow to run based on your need. Read the list for Message ID and use Forward an email (V2) action to resend the same email to desired address. This will trigger your existing flow.
Please see if this helps.
Regards
Krishna Rachakonda
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