uschar **sender_host_aliases = &no_aliases;
uschar *sender_host_address = NULL;
uschar *sender_host_authenticated = NULL;
+uschar *sender_host_auth_pubname = NULL;
unsigned int sender_host_cache[(MAX_NAMED_LIST * 2)/32];
BOOL sender_host_dnssec = FALSE;
uschar *sender_host_name = NULL;