[Mimedefang] Documentational TLD by RFC 2606

imacat imacat at mail.imacat.idv.tw
Sun Apr 15 14:07:46 EDT 2007


Dear all,

    Hi.  This is imacat from Taiwan.  I was dealing one of my local
rules regarding to mydomain.com, in mimedefang-filter, and found that
"mydomain.com" is used throughout the documents of MIMEDefang.

    According to RFC 2606 chapter 2,

http://www.rfc-editor.org/rfc/rfc2606.txt

    documentation should use .example TLD instead of .com.  From simple
grepping I saw that at least in 4 files:

examples/suggested-minimum-filter-for-windows-clients
mimedefang-filter.5.in
tests/test-filter
watch-mimedefang.8

    there are various example domains used:

mydomain.com
mydomain.net
spammer.com
badguy.com
company.com
domain.com
abc.com
abc.net
xyz.com
xyz.net

    Since most of these domains above belong to real companies, to avoid
confusion I suggest MIMEDefang should change them according to RFC 2606. 
I propose a simple patch below.  Hope that this helps.

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Hash: SHA1

diff -u -r mimedefang-2.62.orig/examples/suggested-minimum-filter-for-windows-clients mimedefang-2.62/examples/suggested-minimum-filter-for-windows-clients
- --- mimedefang-2.62.orig/examples/suggested-minimum-filter-for-windows-clients	2006-10-31 03:56:24.000000000 +0800
+++ mimedefang-2.62/examples/suggested-minimum-filter-for-windows-clients	2007-04-16 01:25:40.000000000 +0800
@@ -17,7 +17,7 @@
 #***********************************************************************
 # Set administrator's e-mail address here.  The administrator receives
 # quarantine messages and is listed as the contact for site-wide
- -# MIMEDefang policy.  A good example would be 'defang-admin at mydomain.com'
+# MIMEDefang policy.  A good example would be 'defang-admin at mydomain.example'
 #***********************************************************************
 $AdminAddress = 'postmaster at localhost';
 $AdminName = "MIMEDefang Administrator's Full Name";
@@ -25,7 +25,7 @@
 #***********************************************************************
 # Set the e-mail address from which MIMEDefang quarantine warnings and
 # user notifications appear to come.  A good example would be
- -# 'mimedefang at mydomain.com'.  Make sure to have an alias for this
+# 'mimedefang at mydomain.example'.  Make sure to have an alias for this
 # address if you want replies to it to work.
 #***********************************************************************
 $DaemonAddress = 'mimedefang at localhost';
diff -u -r mimedefang-2.62.orig/mimedefang-filter.5.in mimedefang-2.62/mimedefang-filter.5.in
- --- mimedefang-2.62.orig/mimedefang-filter.5.in	2007-03-31 00:17:36.000000000 +0800
+++ mimedefang-2.62/mimedefang-filter.5.in	2007-04-16 01:50:26.000000000 +0800
@@ -157,13 +157,13 @@
 
 .PP
 For example, if you wish to reject connection attempts from any
- -machine in the spammer.com domain, you could use this function:
+machine in the spammer.example domain, you could use this function:
 
 .nf
 sub filter_relay {
 	my ($ip, $name) = @_;
- -	if ($name =~ /spammer\\.com$/) {
- -		return ('REJECT', "Sorry; spammer.com is blacklisted");
+	if ($name =~ /spammer\\.example$/) {
+		return ('REJECT', "Sorry; spammer.example is blacklisted");
 	}
 	return ('CONTINUE', "ok");
 }
@@ -220,14 +220,14 @@
 same meaning as the return value from \fBfilter_helo\fR.
 
 .PP
- -For example, if you wish to reject messages from spammer at badguy.com,
+For example, if you wish to reject messages from spammer at badguy.example,
 you could use this function:
 
 .nf
 sub filter_sender {
 	my ($sender, $ip, $hostname, $helo) = @_;
- -	if ($sender =~ /^<?spammer\\@badguy\\.com>?$/i) {
- -		return ('REJECT', 'Sorry; spammer at badguy.com is blacklisted.');
+	if ($sender =~ /^<?spammer\\@badguy\\.example>?$/i) {
+		return ('REJECT', 'Sorry; spammer at badguy.example is blacklisted.');
 	}
 	return ('CONTINUE', "ok");
 }
@@ -310,18 +310,18 @@
 works.)
 
 .PP
- -For example, if you wish to reject messages from spammer at badguy.com,
- -unless they are to postmaster at mydomain.com, you could use this function:
+For example, if you wish to reject messages from spammer at badguy.example,
+unless they are to postmaster at mydomain.example, you could use this function:
 
 .nf
 sub filter_recipient {
 	my ($recipient, $sender, $ip, $hostname, $first, $helo,
             $rcpt_mailer, $rcpt_host, $rcpt_addr) = @_;
- -	if ($sender =~ /^<?spammer\\@badguy\\.com>?$/i) {
- -		if ($recipient =~ /^<?postmaster\\@mydomain\\.com>?$/i) {
+	if ($sender =~ /^<?spammer\\@badguy\\.example>?$/i) {
+		if ($recipient =~ /^<?postmaster\\@mydomain\\.example>?$/i) {
 			return ('CONTINUE', "ok");
 		}
- -		return ('REJECT', 'Sorry; spammer at badguy.com is blacklisted.');
+		return ('REJECT', 'Sorry; spammer at badguy.example is blacklisted.');
 	}
 	return ('CONTINUE', "ok");
 }
@@ -1071,7 +1071,7 @@
 if ($size > 1000000) {
 	return action_replace_with_url($entity,
 		"/home/httpd/html/mail_parts",
- -		"http://mailserver.company.com/mail_parts",
+		"http://mailserver.company.example/mail_parts",
 		"The attachment was larger than 1,000,000 bytes.\\n" .
 		"It was removed, but may be accessed at this URL:\\n\\n" .
 		"\\t_URL_\\n");
@@ -1081,7 +1081,7 @@
 This example moves attachments greater than 1,000,000 bytes into
 /home/httpd/html/mail_parts and replaces them with a link.  The
 directory should be accessible via a Web server at
- -http://mailserver.company.com/mail_parts.
+http://mailserver.company.example/mail_parts.
 
 The generated name is created by performing a SHA1 hash of the part and
 adding the extension to the ASCII-HEX representation of the hash.  If many
@@ -1427,15 +1427,15 @@
 .fi
 
 stream_by_domain() looks at all the recipients of the message, and if
- -they belong to the same domain (e.g., joe at domain.com, jane at domain.com and
- -sue at domain.com), it returns 0 and sets the global variable $Domain to
- -the domain (domain.com in this example.)
+they belong to the same domain (e.g., joe at domain.example, jane at domain.example and
+sue at domain.example), it returns 0 and sets the global variable $Domain to
+the domain (domain.example in this example.)
 
 If users are in different domains, stream_by_domain() \fIresends\fR
 the message (once to each domain) and returns 1 For example, if the
- -original recipients are joe at abc.net, jane at xyz.net and sue at abc.net, the
- -original message is resent twice: One copy to joe at abc.net and
- -sue at abc.net, and another copy to jane at xyz.net.  Also, any subsequent
+original recipients are joe at abc.example, jane at xyz.example and sue at abc.example, the
+original message is resent twice: One copy to joe at abc.example and
+sue at abc.example, and another copy to jane at xyz.example.  Also, any subsequent
 scanning is canceled (filter() and filter_end() will \fInot\fR be
 called for the original message) and the message is silently
 discarded.
@@ -1453,10 +1453,10 @@
 .nf
 	sub filter {
 		my($entity, $fname, $ext, $type) = @_;
- -		if ($Domain eq "abc.com") {
- -			# Filter actions for abc.com
- -		} elsif ($Domain eq "xyz.com") {
- -			# Filter actions for xyz.com
+		if ($Domain eq "abc.example") {
+			# Filter actions for abc.example
+		} elsif ($Domain eq "xyz.example") {
+			# Filter actions for xyz.example
 		} else {
 			# Default filter actions
 		}
@@ -1489,7 +1489,7 @@
 your mail server considerably.
 
 Also, a "recipient" is determined before alias expansion.  So
- -"all at mydomain.com" is considered a single recipient, even if Sendmail
+"all at mydomain.example" is considered a single recipient, even if Sendmail
 delivers to a list.
 
 If you have Sendmail 8.12, then locally-submitted messages are sent via
diff -u -r mimedefang-2.62.orig/tests/test-filter mimedefang-2.62/tests/test-filter
- --- mimedefang-2.62.orig/tests/test-filter	2006-04-01 02:04:48.000000000 +0800
+++ mimedefang-2.62/tests/test-filter	2007-04-16 01:25:40.000000000 +0800
@@ -14,14 +14,14 @@
 #***********************************************************************
 # Set administrator's name here.  The administrator receives
 # quarantine messages and is listed as the contact for site-wide
- -# MIMEDefang policy.  A good example would be 'defang-admin at mydomain.com'
+# MIMEDefang policy.  A good example would be 'defang-admin at mydomain.example'
 #***********************************************************************
 $Administrator = 'postmaster at localhost';
 
 #***********************************************************************
 # Set the e-mail address from which MIMEDefang quarantine warnings and
 # user notifications appear to come.  A good example would be
- -# 'mimedefang at mydomain.com'.  Make sure to have an alias for this
+# 'mimedefang at mydomain.example'.  Make sure to have an alias for this
 # address if you want replies to it to work.
 #***********************************************************************
 $DaemonAddress = 'mailer-daemon at localhost';
diff -u -r mimedefang-2.62.orig/watch-mimedefang.8 mimedefang-2.62/watch-mimedefang.8
- --- mimedefang-2.62.orig/watch-mimedefang.8	2007-01-12 23:02:42.000000000 +0800
+++ mimedefang-2.62/watch-mimedefang.8	2007-04-16 01:47:16.000000000 +0800
@@ -98,11 +98,11 @@
 but have it monitor the mail server with a remote session.
 
 The best way to establish a remote session is via SSH.  For example,
- -if you are running MIMEDefang on "mail.mydomain.net", you can type
+if you are running MIMEDefang on "mail.mydomain.example", you can type
 the following into the \fBControl Command\fR entry box and press enter:
 
 .nf
- -	ssh root at mail.mydomain.net md-mx-ctrl
+	ssh root at mail.mydomain.example md-mx-ctrl
 .fi
 
 You \fImust\fR have a public/private key for the target machine and you
@@ -110,7 +110,7 @@
 that requires entry of a password or passphrase.
 
 Assuming your SSH setup is correct, \fBwatch-mimedefang\fR will open
- -an SSH connection to mail.mydomain.net and exchange low-bandwith information
+an SSH connection to mail.mydomain.example and exchange low-bandwith information
 over that session for monitoring purposes.
 
 .SH COMMAND-LINE OPTIONS
@@ -155,11 +155,11 @@
 
 .SH EXAMPLE
 
- -As an example, to monitor MIMEDefang on the machine "mail.mydomain.net"
+As an example, to monitor MIMEDefang on the machine "mail.mydomain.example"
 updating once a second, with the 5m and 10m plots turned off, use:
 
 .nf
- -    watch-mimedefang -command 'ssh root at mail.mydomain.net md-mx-ctrl' \\
+    watch-mimedefang -command 'ssh root at mail.mydomain.example md-mx-ctrl' \\
                      -interval 1000 -5m 0 -10m 0 -title "mail"
 .fi
 
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--
Best regards,
imacat ^_*' <imacat at mail.imacat.idv.tw>
PGP Key: http://www.imacat.idv.tw/me/pgpkey.txt

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