quarantine=
Reason the message was quarantined (V8.13 and later) syslog equate
The quarantine=
equate is used to log the reason that an envelope
was quarantined (Log quarantined messages on page 442).
For example, the following log line shows that this
particular envelope was quarantined because it was
destined for a competitor’s site:
Oct 9 11:26:00 your.domain sendmail[4788]: f99IPuIH004788: ruleset=check_mail, arg1= bob@competitor.gov, quarantine=Held, mail from competitor.gov
Note that the reason for quarantining, which is printed following this equate, may contain spaces, equals signs, and commas, possibly making this output more difficult to parse.
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