On Wed, 19 Nov 1997, Alan Barrett wrote:
> But email should never use DNS search heuristics: domain names in email
> messages should always be fully qualified, and mailers should always
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
I agree, but I was forced to implement
{sender,recipient}_unqualified_{hosts,nets}
because the world doesn't work like that.
> tell their DNS resolvers not to perform any search heuristics (except
> to handle special cases deliberately configured by the sysadmin).
Our own users here in Cambridge, who grew up with a different mail
system (the old JANET "coloured book" protocols) got used to using
partial qualification. I know that they send mail with addresses like
user@??? or user@???
and expect them to get expanded to user@??? etc.
I wonder if there are other sites where this is the normal expectation?
> > I could make no_search_parents the default setting, but
> > this might cause trouble at sites who rely on it.
>
> Yes, you should make no_search_parents the default.
I am very loath to make such a fundamental change unless there is
overwhelming demand for it, because I am scared that it will break a lot
of configurations. (Clearly it is no problem to me: I can change my own
configuration easily enough.)
--
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P.Hazel@??? England. Phone: +44 1223 334714
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