PMDF System Manager's Guide

The headerlabelalign keyword controls the alignment point for message headers enqueued on this channel; it takes an integer-valued argument. The alignment point is the margin where the contents of headers are aligned. For example, sample headers with an alignment point of 10 would appear as follows:

To: ariel@example.com From: caliban@example.com Subject: Alignment test

The default headerlabelalign is 0, which causes headers not to be aligned.

The headerlinelength keyword controls the length of message header lines enqueued on this channel. The default, if this keyword is not explicitly set, is 80. Lines longer than this are folded in accordance with RFC 822 folding rules.

Note that these keywords only control the format of the headers of the message in the message queue; the actual display of headers is normally controlled by the user agent. In addition, headers are routinely reformatted as they are transported across the Internet, so these keywords may have no visible effect even when used in conjunction with simple user agents that do not reformat message headers.