Re: WG to close ; Re: Make CSV backwards compatible with SPF? (new revisions)

> > CSV is a solution based on two methods: CSA vs. DNA.
>  CSV is a suite of specifications that also includes DNA.


The assertion that there is a "versus" between CSA and DNA is quite 
simply wrong.  

Anyone not clear about the roles and functions of components in the the 
CSA specification is strongly encouraged to asked detailed questions 
about them.  That way, we will know what needs to be changed in the 
specifications, to improve their clarity.


> >  The EHLO/MAIL FROM validation is
> > useless if RCPT TO is invalid.
>
>  CSV allows the construction of name based relationships to relate
>  mailbox domains with the mail channel, as example, without requiring
>  subsequent lookups.  

Invalid Rcpt-to?  I suspect that was meant to refer to RFC2821.mailfrom. 

In any event, the RFC2821.helo/ehlo parameter is is per-session and is 
used to validate the OPERATOR OF THE MTA.  The other SMTP parameters are 
per-message.  MailFrom validation mechanisms pertain to the SENDER OF 
THE MESSAGE.

These are entirely different entities, and validating each of them has 
entirely different benefits.



d/
--
Dave Crocker  <mailto:dcrocker-at-brandenburg-dot-com>
Brandenburg InternetWorking  <http://brandenburg.com>