Get stats by SMTP credentials
I think it would be interesting (from a stats perspective) if you can provide another API endpoint to get the current stats by domain and credentials.
Now we can get stats from domain.com (so we can get the domain has sent 300 messages), but we don't know if we have sent these messages using the firstname.lastname@example.org account or using email@example.com or any other account that we can create.
If you can consider this new feature I think will be nice from a Stats and Marketing perspective, to know how the company is in touch with the registered users.
Thanks for your time.