Using different accounts for sending emails
The Paperless allows you to use any valid email account defined within the local Outlook client. For checking the accounts defined within the local Outlook client, go under Settings \ Verify Local Outlook Accounts
Once you selected an account to use, add it within the desired module. Each module is independent, so different accounts can be used within different modules.
If the "Preferred email account" is not valid, the Paperless app will use the the default Outlook account defined on the local workstation.