--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/misc/dccdnsbl.m4	Tue Mar 10 13:49:58 2009 +0100
@@ -0,0 +1,55 @@
+divert(-1)
+
+############################################################################
+# NOTICE:  Unless your version of sendmail is ancient, use the standard
+#   sendmail `FEATURE(dnsbl)' or `FEATURE(enhdnsbl)' and the hackmc script 
+#   in the DCC source instead of this sendmail `FEATURE' file.
+############################################################################
+
+
+# Connect a DNS blacklist such as the RBL+ to the local DCCM daemon and so to
+# a DCC server to report spam to the DCC database.
+# The connection is by the sendmail "dcc_isspam" macro
+#
+# The first and required argument is the domain name of the DNS blacklist
+# The second, optional argument is a log and SMTP status/rejection message.
+#
+# For example, with the following, mail from SMTP clients on the
+#   relays.mail-abuse.org list would be rejected as well as reported as
+#   extremely bulky to the DCC server:
+# `FEATURE(dccdnsbl, `zen.spamhaus.org', `"Mail from " $`'&{client_addr} " reject to DCC - see http://www.spamhaus.org/zen/"')'
+#
+#   (Of course, the outer pair of `' quotes must be removed)
+#
+#   The `FEATURE(dccdnsbl)' line should be after the `FEATURE(dcc)' line
+#   if the latter is present.
+#
+# If you see error messages from sendmail like "map macro not found", check
+#   for the Kmacro definition in cf/m4/proto.m4 and consider the "dnl" comments
+#   below.
+
+divert(0)
+VERSIONID(`dccdnsbl.m4 Rhyolite Software DCC 1.3.103-1.18 $Revision$')
+divert(-1)
+
+define(`_DCCDNSBL_SRV_', ifelse(len(X`'_ARG_),`1',`blackholes.mail-abuse.org',`_ARG_'))
+define(`_DCCDNSBL_MSG_', ifelse(len(X`'_ARG2_),`1',`"Mail from " $`'&{client_addr} " refused by blackhole site '_DCCDNSBL_SRV_`"',`_ARG2_'))
+
+dnl Remove the "dnl " strings (including the blanks) from the following 5 lines
+dnl	up to the divert(8) line if your version of sendmail does not include
+dnl	the Kmacro line by default.
+dnl ifdef(`_DCCDNSBL_DEF_',`dnl',`dnl
+dnl define(_DCCDNSBL_DEF_, 1)dnl
+dnl LOCAL_CONFIG
+dnl `# define macros map to communicate DNS black list results to DCC via dccm'
+dnl Kmacro macro')
+divert(8)
+# DNS based IP address spam list _DCCDNSBL_SRV_ connected to DCCM
+R$*			$: $&{client_addr}
+R$-.$-.$-.$-		$: <?> $(host $4.$3.$2.$1._DCCDNSBL_SRV_. $: OK $)
+R<?>OK			$: OKSOFAR
+R<?>$+<TMP>		$: TMPOK
+R<?>$+			$@ $(macro {dcc_isspam} $@ _DCCDNSBL_MSG_ $) TODCC
+divert(-1)
+
+ifdef(`_DCC_DEF_',`',`FEATURE(`dcc')')dnl