-/* Handle response timeout */
-
-if (*errno_value == ETIMEDOUT)
- {
- *message = US string_sprintf("SMTP timeout after %s%s",
- pl, smtp_command);
- if (transport_count > 0)
- *message = US string_sprintf("%s (%d bytes written)", *message,
- transport_count);
- return FALSE;
- }
-
-/* Handle malformed SMTP response */
-
-if (*errno_value == ERRNO_SMTPFORMAT)
- {
- const uschar *malfresp = string_printing(buffer);
- while (isspace(*malfresp)) malfresp++;
- *message = *malfresp == 0
- ? string_sprintf("Malformed SMTP reply (an empty line) "
- "in response to %s%s", pl, smtp_command)
- : string_sprintf("Malformed SMTP reply in response to %s%s: %s",
- pl, smtp_command, malfresp);
- return FALSE;
- }
-
-/* Handle a failed filter process error; can't send QUIT as we mustn't
-end the DATA. */
-
-if (*errno_value == ERRNO_FILTER_FAIL)
- {
- *message = US string_sprintf("transport filter process failed (%d)%s",
- more_errno,
- (more_errno == EX_EXECFAILED)? ": unable to execute command" : "");
- return FALSE;
- }
-
-/* Handle a failed add_headers expansion; can't send QUIT as we mustn't
-end the DATA. */
-
-if (*errno_value == ERRNO_CHHEADER_FAIL)
- {
- *message =
- US string_sprintf("failed to expand headers_add or headers_remove: %s",
- expand_string_message);
- return FALSE;
- }
-
-/* Handle failure to write a complete data block */
-
-if (*errno_value == ERRNO_WRITEINCOMPLETE)