Name
$=R
Synopsis
The class $=R holds as
its list of values the host and domain names that
sendmail should allow mail to be relayed to.
This $=R class should not be used directly because
it could change without notice in future versions of
sendmail. See RELAY_DOMAIN (Section 7.4.1.1) and RELAY_DOMAIN_FILE (Section 7.4.1.2).
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