[dns-operations] Why would an MTA issue an ANY query instead of an MX query?

Zuleger, Holger, Vodafone Germany holger.zuleger at vodafone.com
Mon Jun 11 08:00:22 UTC 2012

> > What about rate limiting clients which are not keeping the 
> TTL value?
> > We are talking about rate limiting on authoritative name 
> servers, right?
> Not *only* on authoritative name servers. It is also relevant for
> recursive name servers.
In general, yes of course. But I had ANY querys and the current
amplification attack in mind.

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