This interval is displayed with the delay= syslog line equate:
delay=DD+HH:MM:SS
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14.6 Alphabetized syslog Equates | 523
The time expression shows the time it took in hours (HH), minutes (MM), and seconds (SS) to
handle delivery or rejection of the message. If the delay exceeds 24 hours, the time expression
is prefixed withth e number of days (DD) and a plus character. For example, the
following message took 5 seconds to deliver or bounce:
delay=00:00:05
The following message took 4 days, 2 hours, 16 minutes, and 2 seconds to deliver or
bounce:
delay=4+02:16:02
Note that the delay= syslog equate is shown only for recipient records.
14.6.8 dsn=
Show DSN status code syslog equate
When sendmail bounces a message, it notifies the envelope sender of the problem using
DSN. A critical part of DSN is the error code, which provides more detail than the usual
SMTP error code. A DSN error code, as reported with syslog, looks like this:
dsn=5.7.0
Here, the 5 means it was a permanent error, and the 7 means it was a security or policy
rejection. The meanings of DSN status codes are documented in RFC1893.
14.6.9 from=
The envelope sender syslog equate
The from= syslog equate shows the envelope sender:
from=addr
The addr is the address of the envelope sender with any RFC2822 commentary (?§25.
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