Hello, yes that process is possible. Where are these emails coming from? If you're pulling from something like exchange or graph mail, files will automatically be pulled out from the emails and created as IOC's.
Have you ran through the data ingestion wizard for exchange? Open the connector for Exchange, and Click "Configure Data Ingestion". Finish the rest of the steps in the wizard and then see if you start to see IOC's being created with attachments from your emails.
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