12.2 on page 1151 H_RCPT Obsolete
Table 25-8. Identification and control headers
Header ?§ Flags Defined by
Message-ID: ?§25.12.24 on page 1159 None RFC2822
Resent-Message-Id: ?§25.9 on page 1147 H_RESENT RFC2822
Message: ?§25.12.25 on page 1160 H_EOH Obsolete
Text: ?§25.12.37 on page 1167 H_EOH Obsolete
Precedence: ?§25.10 on page 1148 n/a All sendmails
Priority: ?§25.12.29 on page 1161 n/a Many (maps to X.400)
This is the Title of the Book, eMatter Edition
Copyright ?© 2007 O??™Reilly & Associates, Inc. All rights reserved.
1146 | Chapter 25: The H (Headers) Configuration Command
25.8.5 Date and Trace Headers
Date headers are used to document the date and time that the mail message was sent
or forwarded. Trace headers (those with an H_TRACE header flag; ?§25.6.17 on page
1142) are used to determine the hop count of a mail message and to document the
message??™s travel from machine to machine. The list date and trace headers are shown
in Table 25-9.
25.8.6 Other Headers
Other headers that you will see in mail messages are defined by the RFC2822 standard
but are not otherwise internally defined by sendmail. A few of them, such as
Return-Path:, should be declared in the configuration file. The others are usually
inserted by MUAs. Table 25-10 lists these other headers.
Table 25-9. Date and trace headers
Header ?§ Flags Defined by
Date: ?§25.
Pages:
2041
2042
2043
2044
2045
2046
2047
2048
2049
2050
2051
2052
2053
2054
2055
2056
2057
2058
2059
2060
2061
2062
2063
2064
2065