Hi @TTC
I hope this design flow helps you

Here I am looping through a list of mailaddress (which is List variable) and then retriving mails from each and checking if attachments is there , if it is no present, bot will send a reminder via send email action (hope that is what you expects).
For emails having attachments it will downloads to a folder specified under download_path variable

Hope this helps you 🙂
Mark it as solution if it resolves your query 🙂