mail1
mail1(&head, useauthor, useauthor ? rcv : NOSTR);
mail1(&head, useauthor, NOSTR);
extern void mail1(struct header *hp, int use_to, char *orig_to);
mail1(&head, Fflag, NOSTR);
mail1(&head, Fflag, NOSTR);
mail1(&head, 0, NOSTR);
mail1(&head, 1, NOSTR);