Alphabetized Header Reference
Some header lines need to be declared in the configuration
file by using the H
command. Others are created internally by
sendmail. Still others are
created by mail MUAs. These differences are described
individually with each header-line
name
. The following
discussion of header names is in alphabetical order.
Get sendmail, 4th Edition now with the O’Reilly learning platform.
O’Reilly members experience books, live events, courses curated by job role, and more from O’Reilly and nearly 200 top publishers.