Proposal: SMTP service extension for Yadis discovery

[Claus Färber]

Dmitry Shechtman <damnian at gmail.com> schrieb/wrote:
> An SMTP service extension for Yadis discovery is proposed, inspired by Byrne
> Reese's suggestion to allow use of email addresses as OpenID identifiers.

> http://blog.phpbb.cc/2007/02/04/smtp-service-extension-for-yadis-discovery/

The problem here is that is needs support by the email provider _and_
the software vendor.

Email-based OpenIDs (or let's call them user at realm-based OpenIDs, which
just resemble email adresses) could be as simple as a convention to map
<user at example.com> to <http://example.com/~user>.

This also needs support from the email provider but it already works  
with standard software. Many providers already give their customers both  
adresses at the same time.

Claus