Name
$S
Synopsis
Using the mc
configuration method the $S macro stores the
hostname defined by SMART_HOST (Section 4.3.3.6). The
smart host is the name of the host that can deliver all mail that the
local host cannot. $S is most often used with UUCP
sites to get DNS mail to the outside world. Do not use this
$S macro directly, as it might change without
notice in a future version of sendmail. Instead,
define this value using the mc SMART_HOST
configuration macro.
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