Email invoices to a configured address.
Currently invoices can be viewed in: Manage > Subscription > View past payments.
From there you can print the invoice to PDF in order to save them locally.
It would be desirable to be able to automatically email a PDF of new invoices to a defined address.
We have added functionality now to email the invoice to owners of the account. We will be adding in the future the ability to set an email address to also email the invoices to.