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25.8 Headers by Category | 1145
(?§24.9.126 on page 1115) is set, a copy of the bounced mail is also sent to the
address in that header.
25.8.3 Recipient Headers
Recipient headers are those from which one or more recipients can be parsed.
Addresses in headers with the H_RCPT flag (?§25.6.13 on page 1141) are rewritten as
recipient addresses. When sendmail is invoked withth e -t command-line switch, it
gathers a list of recipients from all the headers marked with an H_RCPT flag and
delivers a copy of the message to each.
The list of recipient headers used by sendmail is shown in Table 25-7.
25.8.4 Identification and Control Headers
Some headers serve to uniquely identify a mail message. Others affect the way sendmail
processes a mail message. The complete list of all such identification and control
headers is shown in Table 25-8.
Note that the Precedence: and Posted-Date: headers (discussed next) are hardcoded
into sendmail rather than being declared in conf.c.
Table 25-7. Recipient headers
Header ?§ Flags Defined by
To: ?§25.12.38 on page 1167 H_RCPT RFC2822
Resent-To: ?§25.9 on page 1147 H_RCPT, H_RESENT RFC2822
Cc: ?§25.12.5 on page 1152 H_RCPT RFC2822
Resent-Cc: ?§25.9 on page 1147 H_RCPT, H_RESENT RFC2822
Bcc: ?§25.12.4 on page 1152 H_RCPT, H_BCC RFC2822
Resent-Bcc: ?§25.9 on page 1147 H_RCPT, H_BCC,H_RESENT RFC2822
Apparently-To: ?§25.
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