Fix the use of localname and localdomain in ~/.mtstailor.

* mh/send.c (read_mts_profile): Fix the handling of
localname vs. localdomain.  The localname setting
used alone overrides the hostname as returned by
mu_hostname.  The value of localdomain, if set, is
appended to the hostname (eventually modified by
localname), with a "." as a separator.

@@ -352,19 +352,9 @@ read_mts_profile ()
   rc = mu_property_sget_value (mts_profile, "localdomain", &p);
   if (rc == 0)
     {
-      char *newdomain;
-
-      newdomain = mu_alloc (strlen (hostname) + 1 + strlen (p) + 1);
-      strcpy (newdomain, hostname);
-      strcat (newdomain, ".");
-      strcat (newdomain, p);
-      rc = mu_set_user_email_domain (newdomain);
-      free (newdomain);
-      if (rc)
-	{
-	  mu_error (_("cannot set user mail domain: %s"), mu_strerror (rc));
-	  exit (1);
-	}
+      hostname = mu_realloc (hostname, strlen (hostname) + 1 + strlen (p) + 1);
+      strcat (hostname, ".");
+      strcat (hostname, p);
     }
   else if (rc != MU_ERR_NOENT)
     {
@@ -373,6 +363,14 @@ read_mts_profile ()
       exit (1);
     }
 
+  rc = mu_set_user_email_domain (hostname);
+  free (hostname);
+  if (rc)
+    {
+      mu_error (_("cannot set user mail domain: %s"), mu_strerror (rc));
+      exit (1);
+    }
+  
   rc = mu_property_sget_value (mts_profile, "username", &p);
   if (rc == 0)
     {