On Wed, Sep 18, 2013 at 08:04:04PM +0100, Ben Laurie wrote:
> > This is only realistic with DANE TLSA (certificate usage 2 or 3),
> > and thus will start to be realistic for SMTP next year (provided
> > DNSSEC gets off the ground) with the release of Postfix 2.11, and
> > with luck also a DANE-capable Exim release.
>
> What's wrong with name-constrained intermediates?
X.509 name constraints (critical extensions in general) typically
don't work.
--
Viktor.
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