[Operators] DNSBLs

[Evgeniy Khramtsov]

Norman Rasmussen wrote:
> XMPP validates the sending server via tls and/or dns (dial-back), so it
> removes many of the unauthenticated problems of SMTP.
Sure, but the domain is untrusted even if validated. BTW, we don't 
validate c2s-connections.
> XEP-0158, XEP-0159 and XEP-0161
>   
XEP-0158 is already implemented on some servers. The result - users 
don't want to protect their rooms with captcha because there are too 
many clients which don't understand captcha forms and run on mobile 
device (where you cannot use a fallback HTTP method).
XEP-0159 and XEP-0161 are deferred.

-- 
Regards,
Evgeniy Khramtsov, ProcessOne.
xmpp:xram at jabber.ru.