Name
H line
Synopsis
The lines of text that form the message
header are saved to the qf
file, one per
H
line. Any header lines added by
sendmail are also saved to H
lines in the qf
file.
The form of the H
line is:
Hdefinition
The H
must begin the line, and the
definition
must immediately follow with no
intervening space. The definition
is
exactly the same as, and obeys the same rules as, the
H
commands in the configuration file (Section 25.1). Beginning with V8.10, if the header lacks
header flags, an empty pair of ?
characters are
prefixed to the definition.
When sendmail writes header lines to the
qf
file, it preexpands
sendmail macros (replaces expressions such as
$x
with their values) and preresolves conditionals
($?
, $!
, and
$
.). Beginning with V8.10, the headers in the
qf file might have been rewritten by rule sets.
The order in which H
lines appear in the
qf
file is exactly the same as the order in which
they appear in the delivered message.
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