If you wish to request a copy of a message sent, we can return it to you in PDF format via the API. To do this you need to use the Download action type. You will also need a download ID, retrieved via the Report action.

We will respond either with an error or with the binary file.  You will note that the content type indicated in our response will indicate the file format.....

HTTP/1.1 200 OK

Content-Length: 22818

Content-Type: application/pdf

Server: Microsoft-IIS/6.0

X-Powered-By: PHP/5.2.13

X-Powered-By: ASP.NET

Date: Fri, 5 Apr 2013 06:49:28 GMT

Connection: close

....RAW PDF data here.