Re: Uses of incoming data ...

> Jesse Dougherty wrote:
> 
> > IMHO, There are really two questions to answer when trying 
> to define 
> > headers added to messages to indicate the results of filtering:
> > 	1) what information is useful and to whom? 
> > 	2) what format is useful and how will it be consumed?
> > 
> > My quick thoughts on #1 ...
> > 
> > The incoming email filtered at a gateway/proxy (SMTP or POP time).  
> > The message is then available  to a client or workgroup 
> server, where 
> > a message disposition decision is made.
> > 
> 
> By "client" would that include the MUA?
> 

Yes.  IMHO, It's important to consider that both workgroup servers and
clients will need to consume this header data. 

We have customers who have implemented gateway antispam filtering which
tags the messages.  These messages are passed along (or a subset based
on spam confidence levels and the gateway policy) and handled by custom
rules at the exchange server level.