[dns-operations] DNSSEC and qmail

[Tony Finch]

On Thu, 8 Oct 2009, Paul Vixie wrote:
>
> qmail's query for ANY was meant to be an optimization, to avoid having to
> make both an MX *and* an A query.  sendmail did this for a while also, but
> has been patched.

qmail only looks for CNAME answers after doing an ANY query, so its bug
isn't as bad as sendmail's while still being a WTF.

> but the reason for the ANY query never was due to the canonicalization
> itself, but rather, ignorance and overmicrooptimization.

Yes.

Thanks for your other clarifications.

Tony.
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