Return notification is triggered by the NOTIFY=SUCCESS extension to the RCPT To:
command. If the PrivacyOptions option??™s noreceipts (?§24.9.86.10 on page 1068)
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1142 | Chapter 25: The H (Headers) Configuration Command
keyword is specified, no success return notification will be sent. Beginning with
V8.10, if the RrtImpliesDsn option is set, the presence of any header with H_
RECEIPTTO set will cause sendmail to act as though NOTIFY=SUCCESS was specified,
even if it was not.
Prior to V8.10, no headers had this flag set. For V8.10 through V8.12, the only
header with this flag set is the Return-Receipt-to: header (?§25.12.34 on page 1165).
Beginning withV8.13, the Delivery-Receipt-To: header (?§25.12.34 on page 1165)
also has this flag set.
25.6.15 H_RESENT Header Flag (V5 and Later)
The H_RESENT flag tells sendmail that the header line is prefixed with the resentstring.
Only headers that are marked with this flag can tell sendmail that this is a
???forwarded??? message. If no ???forwarded??? headers are found, sendmail strips any
bogus resent- header lines from the message??™s header.
25.6.16 H_STRIPCOMM Header Flag (V8.10 and Later)
The $> operator with header definitions causes the RFC2822 commentary to be
removed from the field before it is passed to a rule set.
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