diff -urN sendmail-8.9.3/cf/feature/domainmap.m4 sendmail-8.9.3-domainmap/cf/feature/domainmap.m4
--- sendmail-8.9.3/cf/feature/domainmap.m4	Wed Dec 31 18:00:00 1969
+++ sendmail-8.9.3-domainmap/cf/feature/domainmap.m4	Tue Sep 14 10:45:08 1999
@@ -0,0 +1,34 @@
+ifdef(`_DOMAIN_MAP_',`',`dnl
+LOCAL_RULE_0
+# do mapping for domains where applicable
+R$* $=O $* <@ $=D .>	$@ $>97 $1 $2 $3	Strip extraneous routing
+R$+ <@ $=D .>		$>DomainMapLookup $1 <@ $2 .>	domain mapping
+
+LOCAL_RULESETS
+###########################################################################
+###   Ruleset DomainMapLookup -- special rewriting for mapped domains   ###
+###########################################################################
+
+SDomainMapLookup
+R $=L <@ $=w .>		$@ $1 <@ $2 .>		weed out local users, in case
+#						Cw contains a mapped domain
+R $+ <@ $+ .>		$1 <@ $2 >		strip trailing dot
+R $+ <@ $+ . $+ >	$1 <@ $(dequote $2 "_" $3 $) >
+#						change "." to "_"
+R $+ <@ $+ >		$: $1 <@ $(dequote "domain_" $2 $) >
+#						prepend "domain_"
+R $+ + $+ <@ $*>	$1 <@ $3 > <+> $2	handle user+list syntax
+R $+ <@ $* > $*		$( $2 $1 $: <ERROR> $) $3
+#						do actual domain map lookup
+R <ERROR> $*		$#error $@ 5.1.1 $: "550 email address lookup in domain map failed"
+R $* <TEMP> $*		$#error $@ 4.3.0 $: "450 domain map temporarily unavailable"
+R $+ @ $+ <+> $+	$1 + $3 @ $2		reset original user+list
+R $+ <+> $*		$1			paranoid check - remove <+>
+R $+ @ $+ .		$1 @ $2			strip trailing dot
+R $+ @ $+		$@ $>97 $1 @ $2		recanonify
+define(`_DOMAIN_MAP_',`1')')
+
+LOCAL_CONFIG
+CD _ARG_
+K `domain_'translit(_ARG_, `.', `_') _ARG2_ -T<TEMP>
+
diff -urN sendmail-8.9.3/cf/m4/cfhead.m4 sendmail-8.9.3-domainmap/cf/m4/cfhead.m4
--- sendmail-8.9.3/cf/m4/cfhead.m4	Tue Dec 29 11:42:08 1998
+++ sendmail-8.9.3-domainmap/cf/m4/cfhead.m4	Tue Sep 14 10:36:43 1999
@@ -44,7 +44,7 @@
 `ifdef(`_MAILER_$1_', `dnl`'',
 `define(`_MAILER_$1_', `')PUSHDIVERT(7)include(_CF_DIR_`'mailer/$1.m4)POPDIVERT`'')')
 define(`DOMAIN', `PUSHDIVERT(-1)define(`_ARG_', $2)include(_CF_DIR_`'domain/$1.m4)POPDIVERT`'')
-define(`FEATURE', `PUSHDIVERT(-1)define(`_ARG_', $2)include(_CF_DIR_`'feature/$1.m4)POPDIVERT`'')
+define(`FEATURE', `PUSHDIVERT(-1)define(`_ARG_', $2)define(`_ARG2_', $3)include(_CF_DIR_`'feature/$1.m4)POPDIVERT`'')
 define(`HACK', `PUSHDIVERT(-1)define(`_ARG_', $2)include(_CF_DIR_`'hack/$1.m4)POPDIVERT`'')
 define(`VERSIONID', ``#####  $1  #####'')
 define(`LOCAL_RULE_0', `divert(3)')