Phil Howard [phil-spf-discuss(_at_)ipal(_dot_)net] wrote:
Here's my idea. Have a modifier that would usually be one of "cr=0" or
"cr=1", to establish the domain owner's C/R policy on sending
confirmation requests back to them (their users). The semantics would
be to store the value in a "cr" variable, and use whatever was last
stored whenever a mechanisms validates the sending client. Then an MX
host, to be compliant with this idea, would _never_ send a C/R
confirmation request if the last stored "cr" value is 0.
I think this C/R flag, which is a good idea BTW, is really a separate concept
from SPF, and should probably reside in a separate TXT record:
v=cr1 (no|yes|exists:...)
-------
Sender Permitted From: http://spf.pobox.com/
Archives at http://archives.listbox.com/spf-discuss/current/
Latest draft at http://spf.pobox.com/draft-mengwong-spf-02.9.4.txt
To unsubscribe, change your address, or temporarily deactivate your
subscription,
please go to
http://v2.listbox.com/member/?listname(_at_)���v¼����ߴ� �1I�-�Fqx(_dot_)com