[ratelimits] RRL vs other approaches

[Tony Finch]

On 20 Feb 2013, at 00:49, Tony Finch <dot at dotat.at> wrote:

> There are a couple of problems with Ed's presentation:
> 
> (1) Why not send a minimal truncated response rather than a refused response? It is the same size and avoids interop problems.
> 
> (2) The only mail server that makes ANY queries is qmail, and it does so for address canonic

ETRUNCATED sorry

...alization NOT for collecting address records (and the latter would not usually be directed at the zone apex). Se http://fanf.livejournal.com/122220.html

(I have a vague memory that early versions of IPv6 support in ¿Sendmail? ¿Exim? might have used ANY queries but that code didn't outlive the 1990s.)
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