extern void tls_clean_env(void);
extern BOOL tls_client_start(client_conn_ctx *, smtp_connect_args *,
void *, tls_support *, uschar **);
extern void tls_clean_env(void);
extern BOOL tls_client_start(client_conn_ctx *, smtp_connect_args *,
void *, tls_support *, uschar **);