From bfdee87d0d15e71c10a68a61a5b294ec79e367e0 Mon Sep 17 00:00:00 2001
From: jmb <jmb@FreeBSD.org>
Date: Wed, 25 Feb 1998 22:06:34 +0000
Subject: 	added two new files: allowed_domains.txt and allowed_ips.txt. 
 domains/ips listed in these files are *NOT* filtered, 	even if listed in
 domains.txt or ips.txt.

	someone added netcom.com to the domains.txt file,
	resulting in all mail from netcom.com being blocked.
---
 etc/mail/Makefile | 33 ++++++++++++++++++++++-----------
 etc/mail/README   | 25 ++++++++++++++++++++-----
 2 files changed, 42 insertions(+), 16 deletions(-)

diff --git a/etc/mail/Makefile b/etc/mail/Makefile
index 82f01b6..e42c9c2 100644
--- a/etc/mail/Makefile
+++ b/etc/mail/Makefile
@@ -3,30 +3,41 @@ default:
 	mv -f /etc/mail/ips.txt /etc/mail/ips.txt.0
 .endif
 	fetch ftp://ftp.gulf.net/pub/docs/ips.txt
-	cat /etc/mail/ips.txt | cut -d ' ' -f 1 | \
+	sort ips.txt > block_ips.txt
+	touch allowsorted_ips.txt
+.if exists(/etc/mail/allow_ips.txt)
+	sort allow_ips.txt > allowsorted_ips.txt
+.endif
+	comm -23 block_ips.txt allowsorted_ips.txt | \
+	        cut -d ' ' -f 1 | \
 		sed -e 's/$$/ 	#blocked. contact postmaster/' > \
-		/etc/mail/ips.new
-	mv /etc/mail/ips.new /etc/mail/ips.txt
+		/etc/mail/block_ips.new
+	rm allowsorted_ips.txt
+	mv /etc/mail/block_ips.new /etc/mail/block_ips.txt
 .if exists(/etc/mail/domains.txt)
 	mv -f /etc/mail/domains.txt /etc/mail/domains.txt.0
 .endif
 	fetch ftp://ftp.gulf.net/pub/docs/domains.txt
-	cat /etc/mail/domains.txt | cut -d ' ' -f 1 | \
+	sort domains.txt > block_domains.txt
+	touch allowsorted_domains.txt
+.if exists(/etc/mail/allow_domains.txt)
+	sort allow_domains.txt > allowsorted_domains.txt
+.endif
+	comm -23 block_domains.txt allowsorted_domains.txt | \
+		cut -d ' ' -f 1 | \
 		sed -e 's/$$/ 	#blocked. contact postmaster/' > \
-		/etc/mail/domains.new
-	mv /etc/mail/domains.new /etc/mail/domains.txt
+		/etc/mail/block_domains.new
+	rm allowsorted_domains.txt
+	mv /etc/mail/block_domains.new /etc/mail/block_domains.txt
 
 install:
-	makemap hash /etc/mail/spamsites < /etc/mail/domains.txt
+	makemap hash /etc/mail/spamsites < /etc/mail/block_domains.txt
 .if exists(/etc/mail/spamsites.local)
 	makemap -o hash /etc/mail/spamsites < /etc/mail/spamsites.local
 .endif
-	makemap hash /etc/mail/denyip < /etc/mail/ips.txt
+	makemap hash /etc/mail/denyip < /etc/mail/block_ips.txt
 .if exists(/etc/mail/denyip.local)
 	makemap -o hash /etc/mail/denyip < /etc/mail/denyip.local
 .endif
-.if exists(/etc/mail/fakenames)
-	makemap hash /etc/mail/fakenames < /etc/mail/fakenames
-.endif
 
 all: default install
diff --git a/etc/mail/README b/etc/mail/README
index 4a3c380..51a033f 100644
--- a/etc/mail/README
+++ b/etc/mail/README
@@ -1,4 +1,4 @@
-	Filtering out SPAM from your site
+		Filtering out SPAM from your site
 
 Introduction:
 	The FreeBSD Project filters spam, unsolicited commerical
@@ -12,6 +12,14 @@ usernames (such as investor and success).  We do not accept mail
 from any machine that matches a entry in either database, or users
 in the fakenames database.
 
+	WARNING: We do not maintain the database source files.
+		 Read domain.txt and ips.txt.
+		 (Make will fetch them for you)
+		 Domains that you want to allow, should be added
+		 to the file /etc/mail/allowed_domains.txt.
+		 IP addresses that you want to allow, should be added
+		 to the file /etc/mail/allowed_ips.txt.
+
 Filtering at your site:
 	To filter spam at your site you need to:
 	1. modify your /etc/sendmail.cf, 
@@ -26,14 +34,21 @@ not use m4 to generate your /etc/sendmail.cf, add the database
 declarations to your /etc/sendmail.cf.
 
 2. Fetching the database source files:
+
 	The database source files are available from Gulf Coast
 Internet via anonymous FTP.  The Makefile in /etc/mail will retreive
 the source files for you: as root, type "cd /etc/mail; make" at
 the command line.  The previous version of the database source
-files is moved to <filename>.0.  Local additions should be kept in
-separate files.  We use spamsites.local and denyip.local.  You may
-want to diff the new versions of the files against the previous
-versions to see what has changed.
+files is moved to <filename>.0.  
+
+	Local additions should be kept in separate files.  We use
+spamsites.local and denyip.local.  You may want to diff the new
+versions of the files against the previous versions to see what
+has changed.  
+
+	Local deletions should be kept in separate files.  We use
+allowed_domain.txt and allowed_ips.txt.  (This feature was added
+after netcom.com was added to the spam block list.)
 
 3. Make the databases:
 	As root, type "cd /etc/mail; make install" will build the
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