Steffen Nurpmeso via Postfix-users:
> Btw why do you say "odd"? SRV has the possibility for port 0 ever
> since it was created, yet port 0 never was a valid port. So to
> the contrary even (hah!) we finally live it in full, what was only
> envisioned in the past. If that isn't progress, i do not know.
if _smtps._tcp.DOMAIN exists and the port is 0, then the host
asserts it supports STARTTLS [on port 25]
I'm sorry, but can we please avoid proposals that repurpose some
"invalid bit pattern" case to signal that a domain supports:
- a feature that is not part of the protocol (smtps) that is mentioned
in the request,
- on a port (25) that is not mentioned in the request or response.
Wietse
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