If I BCC or forward something to HubSpot I would like to be notified via a "Success" or "Confirmation" email that the email I just sent was logged successfully rather than having to go in and check that it was done so.
This feature is exactly like what Salesforce offers when you send a BCC email to SF. You have the option for SF to email you back letting you know it was associated with an existing account.
This would be benefical for those that use HubSpot BCC & FWD feature but don't have the ability to go in and check to make sure the information was logged as intended. This feature can help to identify issues of BCC and FWD in HubSpot as well.