Enable Email creation with attachments via local Outlook client from a Cloud App

In a Cloud-based application, there should be a way to create and send an email with attachments via the locally installed Outlook client. The goal is for Outlook to open a new compose window on the user's machine, with the email prefilled recipients, subject, body and attachment so the user can review and edit the message before sending it.

This is a common and expected user interaction in many business workflows—similar to using "Send to → Mail recipient" in Windows Explorer or creating a new message in Outlook with preset content.

It should be evaluated whether this integration can be achieved using the local Outlook Automation API or if Outlook (New) provides a modern alternative for launching the local mail client with prefilled content. Supporting this scenario is essential to maintaining seamless workflows between cloud applications and the locally installed Outlook environment.

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