- smtp_printf("%s\r\n", FALSE, s);
- if (c != OK)
- log_write(0, LOG_MAIN|LOG_REJECT, "%s authenticator failed for %s: %s",
- au->name, host_and_ident(FALSE), ss);
+ if (au)
+ {
+ c = smtp_in_auth(au, &s, &ss);
+
+ smtp_printf("%s\r\n", FALSE, s);
+ if (c != OK)
+ log_write(0, LOG_MAIN|LOG_REJECT, "%s authenticator failed for %s: %s",
+ au->name, host_and_ident(FALSE), ss);
+ }
+ else
+ done = synprot_error(L_smtp_protocol_error, 504, NULL,
+ string_sprintf("%s authentication mechanism not supported", s));