PMDF System Manager's Guide

The authrewrite channel keyword may be used on a source channel to have PMDF propagate authenticated originator information, if available, into the headers. Normally the SMTP AUTH information is used, though this may be overriden via the FROM_ACCESS mapping; see Section 16.1.3. authrewrite takes a required integer value, according to the following table:

Value	Usage
1	Add a Sender: header, or a Resent-sender: header if a Resent-from: or Resent-sender: was already present, containing the AUTH originator
2	Add a Sender: header containing the AUTH originator