scam-backscatter milter

Scam-backscatter prevents spam backscatter (accept and bounce) on
mail servers which don't host mailboxes locally. It validates
mailboxes by verifying the recipient addresses hosted on a different
mail server.

WWW:	http://www.elandsys.com/scam/scam-backscatter/

PR:		ports/147115
Submitted by:	Janne Snabb <snabb@epipe.com>

mail/Makefile

@@ -602,6 +602,7 @@
     SUBDIR += sa-stats
     SUBDIR += sa-utils
     SUBDIR += sastatd
+    SUBDIR += scam-backscatter
     SUBDIR += sccmilter
     SUBDIR += scmail
     SUBDIR += sendmail

mail/scam-backscatter/Makefile

@@ -0,0 +1,72 @@
+# New ports collection makefile for:	scam-backscatter
+# Date created:				2010-05-27
+# Whom:					Janne Snabb <snabb@epipe.com>
+#
+# $FreeBSD$
+#
+
+PORTNAME=	scam-backscatter
+PORTVERSION=	1.5.1
+CATEGORIES=	mail
+MASTER_SITES=	http://www.elandsys.com/scam/scam-backscatter/ \
+		http://dist.epipe.com/mirrors/scam-backscatter/
+DISTNAME=	scamback-${PORTVERSION}
+EXTRACT_SUFX=	.tgz
+
+MAINTAINER=	snabb@epipe.com
+COMMENT=	Address verification milter to prevent spam backscatter
+
+WRKSRC=		${WRKDIR}/scamback
+USE_RC_SUBR=	scam-backscatter
+SUB_FILES=	pkg-message
+
+MAKEFILE=	Makefile.freebsd
+ALL_TARGET=
+
+OPTIONS=	ALLDOMAINS "Verify any domain with the backend" Off \
+		EHLO "Use EHLO instead of HELO in SMTP session" Off \
+		USEMAILERTABLE "Use mailertable to map domains to backends" Off
+
+.include <bsd.port.options.mk>
+.include "${PORTSDIR}/mail/sendmail/bsd.milter.mk"
+
+LDFLAGS+=	${SENDMAIL_LDFLAGS}
+LIBS+=		-lmilter
+LIBS+=		${SENDMAIL_LDADD}
+
+CFLAGS+=	${PTHREAD_CFLAGS}
+LIBS+=		${PTHREAD_LIBS}
+
+.if defined(WITH_ALLDOMAINS)
+CFLAGS+=	-DALLDOMAINS
+.endif
+.if defined(WITH_EHLO)
+CFLAGS+=	-DEHLO
+.endif
+.if defined(WITH_USEMAILERTABLE)
+CFLAGS+=	-DUSEMAILERTABLE
+.endif
+
+MAKE_ARGS+=	CC="${CC}" CCFLAGS="${CFLAGS}" CFLAGS="" \
+		LDFLAGS="${LDFLAGS}" LIBS="${LIBS}"
+
+post-patch:
+	@${REINPLACE_CMD} -e \
+	    's|/var/spool/scam/scam-back\.pid|/var/run/scam-back\.pid|g; \
+	    s|/etc/mail/scam\.conf|${PREFIX}/etc/mail/scam-back\.conf|g;' \
+	    ${WRKSRC}/scam-back.c
+
+do-install:
+	${MKDIR} ${PREFIX}/etc/mail
+	${INSTALL_PROGRAM} ${WRKSRC}/scam-back ${PREFIX}/libexec/scam-back
+	${INSTALL_DATA} ${WRKSRC}/scam.conf ${PREFIX}/etc/mail/scam-back.conf.sample
+
+post-install:
+.if !defined(NOPORTDOCS)
+	${MKDIR} ${DOCSDIR}
+	${INSTALL_MAN} ${WRKSRC}/INSTALL ${DOCSDIR}
+	${INSTALL_MAN} ${WRKSRC}/License ${DOCSDIR}
+.endif
+	${CAT} ${PKGMESSAGE}
+
+.include <bsd.port.mk>

mail/scam-backscatter/distinfo

@@ -0,0 +1,3 @@
+MD5 (scamback-1.5.1.tgz) = 63165c21ba6bde4bc0532f4af67c3e09
+SHA256 (scamback-1.5.1.tgz) = db5b650f92f51cfddf1e2e172791396f01375fefd0456eaee910f0645bae6738
+SIZE (scamback-1.5.1.tgz) = 22748

mail/scam-backscatter/files/patch-scam-back.c

@@ -0,0 +1,20 @@
+--- scam-back.c.orig	2010-02-21 07:20:47.000000000 +0000
++++ scam-back.c	2010-05-26 17:39:32.000000000 +0000
+@@ -437,7 +437,7 @@
+ 
+ #ifndef LINUX
+ #ifdef ALLDOMAINS
+-	backsslen = backss.ss_len
++	backsslen = backss.ss_len;
+ #else
+ 	backsslen  = priv->backss.ss_len;
+ #ifdef FALLBACKEND
+@@ -1174,7 +1174,7 @@
+ 	{
+ 		syslog (LOG_ERR, "cannot open pidfile");
+ 	} else {
+-		snprintf (buf, sizeof (buf), "%ld", (long) pid);
++		snprintf (buf, sizeof (buf), "%ld\n", (long) pid);
+ 		if (write (fd, buf, strlen (buf)) != strlen (buf)) {
+ 			syslog (LOG_ERR, "cannot write to pidfile");
+ 		}

mail/scam-backscatter/files/patch-scam.conf

@@ -0,0 +1,17 @@
+--- scam.conf.orig	2010-05-26 17:27:03.000000000 +0000
++++ scam.conf	2010-05-26 17:28:31.000000000 +0000
+@@ -58,12 +58,12 @@
+ # SMTP timeouts, in seconds
+ # Determines the time to wait for a connection to the backend SMTP server.
+ 
+-#TimeoutSMTPconnect:2
++#TimeoutSMTPConnect:2
+ 
+ # Determines the time to wait for a reply from the backend SMTP
+ # server after sending a SMTP command.
+ 
+-#TimeoutSMTPreply:3
++#TimeoutSMTPReply:3
+ 
+ # Bypass the Scam-backscatter check
+ 

mail/scam-backscatter/files/pkg-message.in

@@ -0,0 +1,21 @@
+===> IMPORTANT NOTE
+
+    A sample configuration file has been installed in %%PREFIX%%/etc/mail
+    directory. Copy and edit it to suit your needs before launching
+    scam-backscatter milter.
+
+    Add the following lines to your /etc/mail/<your_host>.mc configuration.
+
+    define(`confMILTER_MACROS_ENVRCPT', `{rcpt_mailer}, {rcpt_host}, {rcpt_addr}'')dnl
+    INPUT_MAIL_FILTER(`scam-back', `S=unix:/var/scam-back/scam-back.sock, F=T, T=S:240s;R:240s;E:5m')dnl
+
+    If you are already using another milter, you might have
+    confMILTER_MACROS_ENVRCPT already defined. In that case you
+    should ensure that it includes the macros listed above (and add
+    any missing ones).
+
+    To run scam-backscatter from startup, add scambackscatter_enable="YES"
+    in your /etc/rc.conf or your /etc/rc.conf.local
+
+    See %%DOCSDIR%%/INSTALL for configuration details.
+

mail/scam-backscatter/files/scam-backscatter.in

@@ -0,0 +1,56 @@
+#!/bin/sh
+# $FreeBSD$
+
+# PROVIDE: scambackscatter
+# REQUIRE: LOGIN
+# BEFORE: mail
+
+# This file should be installed as %%PREFIX%%/etc/rc.d/scam-backscatter
+#
+# Define scambackscatter_* variables in one of these files:
+# 	/etc/rc.conf
+# 	/etc/rc.conf.local
+#	/etc/rc.conf.d/scambackscatter
+#
+# Add the following line to enable:
+# 	scambackscatter_enable="YES"
+#
+# DO NOT CHANGE THE DEFAULT VALUES BELOW
+#
+
+. /etc/rc.subr
+
+name="scambackscatter"
+rcvar=`set_rcvar`
+command="%%PREFIX%%/libexec/scam-back"
+start_precmd="${name}_prestart"
+
+scambackscatter_user=${scambackscatter_user-"mailnull"}
+scambackscatter_group=${scambackscatter_group-"mailnull"}
+
+scambackscatter_enable=${scambackscatter_enable-"NO"}
+scambackscatter_dir=${scambackscatter_dir-"/var/scam-back"}
+scambackscatter_runas=${scambackscatter_runas-"$scambackscatter_user"}
+scambackscatter_pidfile=${scambackscatter_pidfile-"/var/run/scam-back.pid"}
+scambackscatter_sockfile=${scambackscatter_sockfile-"$scambackscatter_dir/scam-back.sock"}
+scambackscatter_cfgfile=${scambackscatter_cfgfile-"%%PREFIX%%/etc/mail/scam-back.conf"}
+scambackscatter_flags=${scambackscatter_flags-"-p unix:$scambackscatter_sockfile \
+-f $scambackscatter_cfgfile -u $scambackscatter_runas -P $scambackscatter_pidfile \
+-b $scambackscatter_dir/backscatter.txt -D"}
+
+load_rc_config ${name}
+
+scambackscatter_prestart()
+{
+	if [ ! -d "${scambackscatter_dir}/." ]; then
+		mkdir ${scambackscatter_dir}
+		chown ${scambackscatter_user}:${scambackscatter_group} ${scambackscatter_dir}
+		chmod 700 ${scambackscatter_dir}
+	fi
+	if [ ! -f "${scambackscatter_pidfile}" ]; then
+		touch ${scambackscatter_pidfile}
+		chown ${scambackscatter_user}:${scambackscatter_group} ${scambackscatter_pidfile}
+	fi
+}
+
+run_rc_command "$1"

mail/scam-backscatter/pkg-descr

@@ -0,0 +1,8 @@
+scam-backscatter milter
+
+Scam-backscatter prevents spam backscatter (accept and bounce) on
+mail servers which don't host mailboxes locally. It validates
+mailboxes by verifying the recipient addresses hosted on a different
+mail server.
+
+WWW:	http://www.elandsys.com/scam/scam-backscatter/

mail/scam-backscatter/pkg-plist

@@ -0,0 +1,8 @@
+@comment $FreeBSD$
+libexec/scam-back
+etc/mail/scam-back.conf.sample
+%%PORTDOCS%%%%DOCSDIR%%/INSTALL
+%%PORTDOCS%%%%DOCSDIR%%/License
+%%PORTDOCS%%@dirrm %%DOCSDIR%%
+@dirrmtry etc/mail
+@unexec [ -f /var/scam-back/backscatter.txt ] || /bin/rmdir /var/scam-back 2>/dev/null || true