int IsDirectory(char *addr);
void CtdlDirectoryInit(void);
void CtdlDirectoryAddUser(char *internet_addr, char *citadel_addr);
-void CtdlDirectoryDelUser(char *internet_addr);
+void CtdlDirectoryDelUser(char *internet_addr, char *citadel_addr);
int CtdlDirectoryLookup(char *target, char *internet_addr);
struct CtdlMessage *convert_internet_message(char *rfc822);
int CtdlHostAlias(char *fqdn);