I am sending emails via SFMC/ExactTarget to clients using SOAP. I store the returned request ID in a database.
Sometimes I specifically need to retrieve the completed HTML body from that request for local use. There are API calls for information about the email, but they do not appear to provide the body of the email.
I believe the body gets stored somewhere, as it is possible to provide a link to the browser view in the email that uses the subdomain we set up in SFMC as the root.
It would be acceptable to get the HTML via an API call with the request ID, or to get the preview url from an API call that we could then use to get the HTML.