I need to confirm whether I did send one specific email through the service. Does the user private area include some kind of history feature to review my records?
Yes. Access the user private area and go to My emails to view the status of your email delivery receipts and filter your records. Premium users with the backup feature enabled, can also download a copy of their registered emails
In addition, customers managing Extended plans can also use our JSON web services to retrieve, in real time and from their own information systems, the delivery status of their emails.