$=R
Hosts for whom to relay V8.9 and later
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 (The RELAY_DOMAIN mc macro
on page 269) and RELAY_DOMAIN_FILE (The RELAY_DOMAIN_FILE mc macro
on page 269).
Get sendmail, 4th Edition now with the O’Reilly learning platform.
O’Reilly members experience books, live events, courses curated by job role, and more from O’Reilly and nearly 200 top publishers.
