Hi,
for some admittedly special and braindead setup I needed to relay
outgoing mail via another MTA running on localhost:25. In order to
bypass some of the mail loop safety catches, I exteded inet_interfaces
to accept "none".
In case someone might find this useful, I'll publish the path (against
2.8.2) here, including a documentation note strongly discouraging the
use of the new option.
diff -Nru postfix-2.8.2.orig//proto/postconf.proto
postfix-2.8.2/proto/postconf.proto
--- postfix-2.8.2.orig//proto/postconf.proto 2011-01-20 13:10:33.000000000
+0100
+++ postfix-2.8.2/proto/postconf.proto 2011-04-05 09:01:19.000000000 +0200
@@ -1837,8 +1837,10 @@
<p> The network interface addresses that this mail system receives
mail on. Specify "all" to receive mail on all network
interfaces (default), and "loopback-only" to receive mail
-on loopback network interfaces only (Postfix version 2.2 and later). The
-parameter also controls delivery of mail to <tt>user@[ip.address]</tt>.
+on loopback network interfaces only (Postfix version 2.2 and later). Setting
+this parameter to "none" will disable all loop checks and is therefore
+strongly discouraged. The parameter also controls delivery of mail to
+<tt>user@[ip.address]</tt>.
</p>
<p>
diff -Nru postfix-2.8.2.orig//src/global/mail_params.h
postfix-2.8.2/src/global/mail_params.h
--- postfix-2.8.2.orig//src/global/mail_params.h 2011-03-14
18:59:09.000000000 +0100
+++ postfix-2.8.2/src/global/mail_params.h 2011-04-05 08:20:49.000000000
+0200
@@ -152,6 +152,7 @@
#define VAR_INET_INTERFACES "inet_interfaces" /* listen addresses */
#define INET_INTERFACES_ALL "all"
#define INET_INTERFACES_LOCAL "loopback-only"
+#define INET_INTERFACES_NONE "none"
#define DEF_INET_INTERFACES INET_INTERFACES_ALL
extern char *var_inet_interfaces;
diff -Nru postfix-2.8.2.orig//src/global/own_inet_addr.c
postfix-2.8.2/src/global/own_inet_addr.c
--- postfix-2.8.2.orig//src/global/own_inet_addr.c 2006-06-15
20:07:15.000000000 +0200
+++ postfix-2.8.2/src/global/own_inet_addr.c 2011-04-05 08:38:21.000000000
+0200
@@ -124,6 +124,14 @@
}
/*
+ * If we are configured to explicitely ignore all local interfaces,
+ * there's noting left to do
+ */
+ else if (strcmp(var_inet_interfaces, INET_INTERFACES_NONE) == 0) {
+ return;
+ }
+
+ /*
* If we are supposed to be listening only on specific interface
* addresses (virtual hosting), look up the addresses of those
* interfaces.
Regards,
Christoph
--
Spare Space
