The claimed subject matter provides systems and/or methods that facilitate interpreting Multipurpose Internet Mail Extensions (MIME) data. An interface can obtain MIME data. For instance, a stream of MIME data can be obtained, MIME data can be loaded from a static file, etc. Moreover, any disparate type of RFC 822 data can additionally or alternatively be received by the interface. Also, a MIME reader can analyze the MIME data (and/or normalized RFC 822 data) to interpret encoded structural information and generate at least one primitive based on the encoded structural information. Further, a hierarchical model can be built utilizing the at least one primitive.