extern uschar *sender_rcvhost; /* Host data for Received: */
extern BOOL sender_set_untrusted; /* Sender set by untrusted caller */
extern uschar *sender_unqualified_hosts; /* Permitted unqualified senders */
extern uschar *sender_verify_failure; /* What went wrong */
extern address_item *sender_verified_list; /* Saved chain of sender verifies */
extern address_item *sender_verified_failed; /* The one that caused denial */
extern uschar *sender_rcvhost; /* Host data for Received: */
extern BOOL sender_set_untrusted; /* Sender set by untrusted caller */
extern uschar *sender_unqualified_hosts; /* Permitted unqualified senders */
extern uschar *sender_verify_failure; /* What went wrong */
extern address_item *sender_verified_list; /* Saved chain of sender verifies */
extern address_item *sender_verified_failed; /* The one that caused denial */