On Sun, 24 Jan 2010, Always Learning wrote:
> > It's not intended to be a resolvable DNS name, so don't try and use it
> > like one. It's just an identifier.
>
> A non-Internet URI / URL field ? If so, why not distinguish its
> appearance from Internet URIs / URLs so a quick glance assures people it
> its not a web address ? For example
>
> List-Id: A user list for the exim MTA : >>>exim-users.exim.org<<<
> List-Id: A user list for the exim MTA : {exim-users.exim.org}
> List-Id: A user list for the exim MTA : =>exim-users.exim.org<=
> List-Id: A user list for the exim MTA : exim-users:exim:org
> List-Id: A user list for the exim MTA : exim-users_exim_org
>
> etc. because its usual for things like this <exim.euro2.net> to resolve
> into an Internet address as does this one.
Because RFC2919 says that's how List-Id: has to look, and it isn't the
business or best interested of the Mailman software or exim.org to be
fiddling with that.
You should not assume that everything that looks like a DNS name should be
resolvable to a DNS name (or even that anything that is intended to be a
DNS name should be resolvable!). Context is everything: in the context of
the List-Id: header, the list's identifier is made up in the way
described, and is not (necessarily) a resolvable DNS name.
Jethro.
. . . . . . . . . . . . . . . . . . . . . . . . .
Jethro R Binks
Computing Officer, IT Services, University Of Strathclyde, Glasgow, UK
