[OpenID] email address retrieval

[Nicolas Holzapfel]

> There is much, MUCH more on this to be found in the mailing list archives.
> If you can, please be more specific about how you hope to use E-mail
> addresses, and generally what you expect to be different (about the
> operation of your site, and/or the user's interaction with it) if you have
> that information versus if you do not.
>

The site I'm working on would use the user's email address for two purposes:
1) To send various notification emails (for example when the user receives a
reply to a message)
2) Users can have administrative powers over certain groups. If a user adds
or removes another user from a group he/she is administrating, then the
added/removed user receives an email with the administrator's email address
as a reply-to address.

So the email address certainly isn't essential for using the site, but is
helpful. If it's not possible I need to know so I can make changes to the
design documentation accommodating users who we cannot send email
notifications to (since certain options won't be availble).


>
>
>  So in the settings it would say something like "email address: contact via
>> OpenID" but would not be able to actually state the email address?
>>
>
> Are you thinking that, to contact a user via E-mail, you would have to
> contact their OP (perhaps through OAuth) and request that the OP send that
> user a message on your behalf?
>

Yes that was what I was uncertain about. I checked the Facebook Connect sample
application <http://www.somethingtoputhere.com/therunaround/> and that is
how it *appears* to work. Do certain OPs withold email addresses and certain
OPs make them available?


>
> What if I don't want the *OP* to know my E-mail address, but I'm fine with
> *you* knowing it?


The user is free to set up an email address and password with my site and
not use an OP for logging in.
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