I want to build an add-in for outlook which automtically scans a particular folder in the mailbox and extracts relevant information from the email body, attachments and store it in some database.

a) Installs itself as a plugin in user's outlook.
b) The folder to scan within outlook can be configured by the user.
c) From the folder it should be able to pick a new email arriving in that folder.
d) Once an email arrives, scan email to extract relevant information.

According to the documentation for creating add-in, I followed the same but it created add in at an item level so I can use the particular email and manually do things on that.

But my use case is different. Is there any way I can achieve my case?