7.33 on page 244).
S, F, D(success, failure, delay)
The DSN NOTIFY extension to the RCPT SMTP command will specify either NEVER
or some combination of SUCCESS, FAILURE, or DELAY. When any of these is specified,
its first letter is used as a flag for the recipient address. SUCCESS means to notify
the sender that final delivery succeeded. FAILURE is used to notify the sender that
some step toward delivery failed fatally. DELAY lets the sender know that the message
has been delayed but delivery will continue to be attempted.
A
If the address in the R line is the result of an alias expansion, this A flag is included to
indicate that fact.
Each R line is fully processed as it is read. That is, the line is scanned for multiple addresses.
Eachaddress that is found is alias-expanded. Eachresulting new address is processed by
the canonify rule set 3 and the parse rule set 0 to resolve a delivery agent for each.
11.12.18 S line
Sender??™s address All versions of sendmail
Each mail message must have a sender. The sendmail program can determine the sender in
four ways:
??? If the sender is specified in the envelope of an SMTP connection, that sender??™s address
is used.
??? If th e-f command-line argument is used to run sendmail, the sender??™s address is the
address following the -f.
This is the Title of the Book, eMatter Edition
Copyright ?© 2007 O??™Reilly & Associates, Inc.
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