> On Jan 12, 2016, at 5:21 PM, Shumon Huque <[email protected]> wrote:
>
> On the "_smtp-client" label choice, I had originally used just "_smtp", but
> a colleague more plugged into IANA service name registration procedures
> advised me that I should choose a different client specific label. The
> "_smtp" label is a server side label with an associated server side port,
> and that reusing that label for a client identifier would elicit objections.
>
The reason I talked you out of it, is that I wanted the query-domain for
client TLSA records to be the same as the SRV-ID. Injecting a sub-domain
makes it more difficult to use the names in question if SRV-ID is
what's in the certificate.
Using the SRV-ID as the query domains is not an absolute requirement, but
it is a simplification that should not be discard too lightly. Trade-off
judgement call...
--
Viktor.
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