On Tue, Aug 24, 2004 at 06:29:27PM -0400,
John Glube <jbglube(_at_)sympatico(_dot_)ca> wrote
a message of 146 lines which said:
3. Is an SMTP client authorized to use a particular
email address in an SMTP "MAIL FROM:" command?
...
If people want the MAIL FROM to play a role in Sender ID,
they should say so. If they do not say so, the working
assumption is that nobody cares.
...
These messages reflect the deployment issues I am raising
with marid-protocol/marid-core and which remain outstanding.
Is it unrealistic to assume that, if the current Sender-ID becomes a
RFC as it is, nevertheless, some people will use SPF records (as
specified in -protocol) to perform checks on the 2821 MAIL FROM and
not only on the official PRA?
A sort of unofficial "Unified SPF"?