Produce more detailed diagnostics

@@ -88,7 +88,8 @@ main (int argc, char **argv)
 
   if ((ret = mailbox_create_default (&mbox, mailbox_name)) != 0)
     {
-      fprintf (stderr, "could not create - %s\n", mu_strerror (ret));
+      fprintf (stderr, "could not create %s: %s\n",
+	       mailbox_name, mu_strerror (ret));
       exit (2);
     }
 

@@ -63,10 +63,18 @@ mail_copy0 (int argc, char **argv, int mark)
       return 1;
     }
 
-  if (mailbox_create_default (&mbx, filename)
-      || mailbox_open (mbx, MU_STREAM_WRITE | MU_STREAM_CREAT))
+  if ((status = mailbox_create_default (&mbx, filename)) != 0)
     {
-      util_error (_("Cannot create mailbox %s"), filename);
+      util_error (_("Cannot create mailbox %s: %s"), filename, 
+                   mu_strerror (status));
+      free (filename);
+      msgset_free (msglist);
+      return 1;
+    }
+  if ((status = mailbox_open (mbx, MU_STREAM_WRITE | MU_STREAM_CREAT)) != 0)
+    {
+      util_error (_("Cannot open mailbox %s: %s"), filename, 
+                   mu_strerror (status));
       free (filename);
       msgset_free (msglist);
       return 1;

@@ -105,12 +105,18 @@ mail_mbox_commit ()
 	  if (!dest_mbox)
 	    {
 	      char *name = getenv ("MBOX");
-
-	      if (mailbox_create_default (&dest_mbox, name)
-		  || mailbox_open (dest_mbox,
-				   MU_STREAM_WRITE | MU_STREAM_CREAT))
+	       
+	      if ((status = mailbox_create_default (&dest_mbox, name)) != 0)
+		{
+		  util_error (_("Cannot create mailbox %s: %s"), name,
+                              mu_strerror (status));
+		  return 1;
+		}
+              if ((status = mailbox_open (dest_mbox,
+			   	          MU_STREAM_WRITE | MU_STREAM_CREAT))!=0)
 		{
-		  util_error (_("Cannot create mailbox %s"), name);
+		  util_error (_("Cannot open mailbox %s: %s"), name,
+                              mu_strerror (status));
 		  return 1;
 		}
 	    }

@@ -539,7 +539,8 @@ mail_send0 (compose_env_t * env, int save_to)
 			  mailbox_destroy (&mbx);
 			}
 		      if (status)
-			util_error (_("Cannot create mailbox %s"), env->outfiles[i]);
+			util_error (_("Cannot create mailbox %s: %s"), 
+                                    env->outfiles[i], mu_strerror (status));
 		    }
 		}
 	    }