PMDF System Manager's Guide

PMDF only interprets the contents of header lines when necessary. However, MIME messages can contain multiple sets of message headers as a result of the ability to imbed messages within messages (message/rfc822). PMDF normally only interprets and rewrites the outermost set of message headers. PMDF can optionally be told to apply header rewriting to inner headers within the message as well.

This behavior is controlled by the use of the noinner and inner keywords. noinner tells PMDF not to rewrite inner message header lines. It is the default. inner tells PMDF to parse messages and rewrite inner headers.

These keywords can be applied to any channel.