Which Table the 'Send the notification' content store

Summary:

Where is the the mail sent to recruiter/hiring manager(not email template, it's the whole mail sent)

Content (required):

Where is the the mail sent to recruiter/hiring manager(not email template, it's the whole mail sent).

We are develop a interface to other notification system, we want to catch the detail notification mail which sent to our hiring team, include to list/cc list/content;

Anyone have idea?

Version (include the version you are using, if applicable):

Code Snippet (add any code snippets that support your topic, if applicable):