We use MS Teams quite a lot to automatically save attachments from emails onto SharePoint. This works very efficiently when a user emails a file (excel or csv) to a Teams channel.
We have a new scenario where we want files that are being emailed from our Finance System to be saved to SharePoint. We have struck an issue though where when the email comes from the system, the attachments aren't saved separately to SharePoint, only the email.
I have tested an can confirm that:
Sending the same attachments from a regular user email results in the attachments being saved
Sending the same attachments from a gmail account results in the attachments being saved
Sending the email from the system directly only results in the email being saved
Sending the email to a generic mailbox from the system with an auto forward to MS Teams results in only the email being saved
I am trying to understand how we can overcome this so the attachments are saved separately to the email. My administrator thinks its because the system email isn't a 'real mailbox' and so MS Teams might consider it a security risk and not extract attachments.