[Operators] DNSBLs

[Dave Cridland]

------- Original message -------
> From: Evgeniy Khramtsov <xramtsov at gmail.com>
> Sent: 15/11/'09,  5:27
>
> 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.

Right, we authenticate, whereas SMTP cannot, but we don't authorize 
specially for a domain. We also authenticate c2s, and we (should) have lots 
of authorization there.

Dave.