On 2021/11/08 14:52, Crystal Kolipe wrote:
> src/usr.sbin/smtpd/smtp_session.c contains the following code:
>
> 1892 static void
> 1893 smtp_proceed_wiz(struct smtp_session *s, const char *args)
> 1894 {
> 1895 smtp_reply(s, "500 %s %s: this feature is not supported
> yet ;-)",
> 1896 esc_code(ESC_STATUS_PERMFAIL, ESC_INVALID_COMMAND),
> 1897 esc_description(ESC_INVALID_COMMAND));
> 1898 }
>
> This was added between revisions 1.194 and 1.195, with no mention in the
> changelog.
>
> I'm not aware of a 'wiz' command in any SMTP related RFC.
>
> Is this spurious debugging code related to the addition of DSN and enhanced
> status code support? Or is it there as a way to identify servers that are
> running smtpd in the wild? Or is there some other reason?
>
This will become clear if you look into sendmail history :)
