spf-discuss
[Top] [All Lists]

Qwestions about SRS

2004-01-09 14:40:13
I have been looking at SRS and have some questions.  

Is SRS meant to be implement at the MTA level?

First the choice of bounce- for rewriting.  This would break qmail as it
stands.  You could get around it with lots of mugging and aliases, but it
would not be pretty.  I would think an inside outside forwarding
rewriting would be easier to deal with at the MTA level due to it not
requiring any changes, and users can control their own forwards.  An
example would be like this:

sndr: bob(_at_)sender(_dot_)org
rcpt: joe(_at_)forwarder(_dot_)com

     joe(_at_)forwarder(_dot_)com forwards to trogdor(_at_)remailer(_dot_)com

sndr: joe-bounce=-bob#sender(_dot_)org(_at_)forwarder(_dot_)com
rcpt: trogdor(_at_)remailer(_dot_)com

     trogdor(_at_)remailer(_dot_)com forwards to 
j(_dot_)fhqwhgads(_at_)destination(_dot_)com

sndr: 
trogdor-bounce=-joe-bounce=-bob#sender(_dot_)org#forwarder(_dot_)com(_at_)remailer(_dot_)com
rcpt: j(_dot_)fhqwhgads(_at_)destination(_dot_)com

With a format like this you could also use cookies in a defines way.
Example: 

sndr: bob(_at_)sender(_dot_)org
rcpt: joe(_at_)forwarder(_dot_)com

     joe(_at_)forwarder(_dot_)com forwards to trogdor(_at_)remailer(_dot_)com

sndr: joe-bounce=<OneTimecookie>-bob#sender(_dot_)org(_at_)forwarder(_dot_)com
rcpt: trogdor(_at_)remailer(_dot_)com
 
     Rinse lather repeat. 

-Jeremy Rossi

-------
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_)©#«Mo\¯HÝÜîU;±¤Ö¤Íµø?¡


<Prev in Thread] Current Thread [Next in Thread>
  • Qwestions about SRS, Jeremy Rossi <=