g., .uucp and
.fax)
$={ResOk} ?§22.6.11 on page 874 Mark a successful DNS lookup.
$=R ?§7.4.1.1 on page 269 With RELAY_DOMAIN or RELAY_DOMAIN_FILE, the list
of domains and hosts for which to relay
$={SpamTag} ?§7.5.6 on page 284 With FEATURE(delay_checks), holds the strings
SPAMFRIEND and SPAMHATER (V8.10 and later)
$={src} Follows table List of rule sets to call for searching the access database map
(prior to V8.13 called this)
$={Src} Follows table List of rule sets to call for searching the access database map
(V8.13 and later called this)
$={tls} ?§22.6.13 on page 875 Possible values for TLS policy in the access database map
(prior to V8.13 called this)
$={Tls} ?§22.6.13 on page 875 Possible values for TLS policy in the access database map
(V8.13 and later called this)
$={TrustAuthMech} ?§5.1.3 on page 191 With TRUST_AUTH_MECH, the mechanisms used to allow
relaying (V8.10 and later)
This is the Title of the Book, eMatter Edition
Copyright ?© 2007 O??™Reilly & Associates, Inc. All rights reserved.
868 | Chapter 22: The C and F (Class Macro) Configuration Commands
The class $=O is used by the m4 technique to hold a list of characters that cannot be
used in local usernames. This list is used to detect certain kinds of routing addresses
that might otherwise be difficult to detect. This list initially contains:
@ %
but can also contain an ! if UUCP support is included.
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