Map/Normalize Email Address to IdP/OP URL (Was [PROPOSAL] Handle "http://user at example.com" Style Identifiers)

[Martin Atkins]

Jonathan Daugherty wrote:
> # I think that all this discussion about email userid is moving us off
> # track.  My original proposal was that the email maps/normalizes to a
> # URL of an IdP (the userid is ignored/not used).
> # 
> # So, 'xyzzy at any.edu' would be treated as if the User had entered
> # 'http://any.edu' (the URL of their IdP/OP) into the OpenId login
> # form.
> 
> Then why not just enter 'http://any.edu' or 'any.edu' instead?
> 

Because that doesn't have an at sign in it.