Yes, all outbound and inbound API calls from Salesforce are strictly to the client’s Azure instance. The app does not integrate with any third-party applications, ensuring secure and direct communication between Salesforce and Azure.
P.S. Discover Azure Integration, the easy way to upload files from any Salesforce record to Azure. Find it on AppExchange: https://appexchange.salesforce.com/appxListingDetail?listingId=c9e71bd6-5bab-4182-a461-b82d4f971183