${daemon_family}
Listening daemon’s family V8.10 and later
The sendmail program can listen
for (await) inbound connections on more than one
interface, where each interface can employ any one
of five possible protocol families. Possible
families are inet
for AF_INET, inet6 for AF_INET6, iso for AF_ISO, ns for AF_NS, and
x.25 for
AF_CCITT. The value stored in this ${daemon_family} macro
is taken from the DaemonPortOptions=Family option (DaemonPortOptions=Family=
on page 995) whenever a message is processed by rule
sets, and reflects the family of the interface upon
which the inbound connection was received.
This ${daemon_family} macro is not used in
the rule sets supplied with
sendmail. It is, however,
available for your use when designing custom rule
sets. Note that a $& prefix is necessary when you
reference this macro in rules (that is, use $&{daemon_family},
not ${daemon_family}).
${daemon_family} is
transient. If it is defined in the configuration
file or in the command line, that definition can be
ignored by sendmail.
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