uschar *serialize_hosts;
uschar *hosts_try_auth;
uschar *hosts_require_auth;
+ uschar *hosts_try_chunking;
#ifdef EXPERIMENTAL_DANE
uschar *hosts_try_dane;
uschar *hosts_require_dane;
#endif
+ uschar *hosts_try_fastopen;
#ifndef DISABLE_PRDR
uschar *hosts_try_prdr;
#endif