Re: Local delivery continues after code 550

[Wietse Venema]

Mats Luspa:
> 
> Yes, apparmor is used. But I'm not an expert in configuring apparmor.  
> But maybe something there is preventing the linux-container to read  
> some part of the file system that affects postfix.
> 
> I must check it.

Meanwhile, I have added logging to the mail_command_client() function
so that it logs why the bounce request is deferred.

        Wietse

--- /var/tmp/postfix-3.1-20150208/src/global/mail_command_client.c      
2014-12-14 13:22:05.000000000 -0500
+++ ./mail_command_client.c     2015-02-14 20:37:34.000000000 -0500
@@ -52,6 +52,7 @@
 /* Utility library. */
 
 #include <vstream.h>
+#include <msg.h>
 
 /* Global library. */
 
@@ -67,16 +68,26 @@
 
     /*
      * Talk a little protocol with the specified service.
+     * 
+     * This function is used for non-critical services where it is OK to back
+     * off after the first error. Log what communication stage failed, to
+     * facilitate trouble analysis.
      */
-    if ((stream = mail_connect(class, name, BLOCKING)) == 0)
+    if ((stream = mail_connect(class, name, BLOCKING)) == 0) {
+       msg_warn("connect to %s/%s: %m", class, name);
        return (-1);
+    }
     va_start(ap, name);
     status = attr_vprint(stream, ATTR_FLAG_NONE, ap);
     va_end(ap);
-    if (status != 0
-       || attr_scan(stream, ATTR_FLAG_STRICT,
-                    RECV_ATTR_INT(MAIL_ATTR_STATUS, &status), 0) != 1)
+    if (status != 0) {
+       msg_warn("write %s: %m", VSTREAM_PATH(stream));
        status = -1;
+    } else if (attr_scan(stream, ATTR_FLAG_STRICT,
+                        RECV_ATTR_INT(MAIL_ATTR_STATUS, &status), 0) != 1) {
+       msg_warn("read %s: %m", VSTREAM_PATH(stream));
+       status = -1;
+    }
     (void) vstream_fclose(stream);
     return (status);
 }