{
uschar **aliases = sender_host_aliases;
debug_printf("IP address lookup yielded \"%s\"\n", sender_host_name);
- while (*aliases != NULL) debug_printf(" alias \"%s\"\n", *aliases++);
+ while (*aliases) debug_printf(" alias \"%s\"\n", *aliases++);
}
/* We need to verify that a forward lookup on the name we found does indeed