PMDF System Manager's Guide

The x_env_to and nox_env_to keywords control the generation or suppression of X-Envelope-to: header lines on copies of messages queued to a specific channel. On channels that are marked with the single keyword, the x_env_to keyword enables generation of these headers while the nox_env_to will remove such headers from enqueued messages. The default is nox_env_to ; (note that this default behavior is a change in PMDF V5.0 from previous versions of PMDF). Note that the fact that x_env_to also requires the single keyword in order to take effect represents a change of behavior from PMDF V5.1 and earlier. See Section 19.1.4.14 for a discussion of the meaning of X-Envelope-to: headers.