Re: acceptings partically a message

John C Klensin writes:
> Is there something I'm missing?
RFC3028 and friends. It's practical for each of spamtrap and 
mailing-list to reject or accept based on the contents of the message.
My code to implement this does

    if all rejected
       answer "CR LF . CR LF" with 5xx
   else if all accepted
       2xx
   else
       2xx, and send a DSN with the exact details

The third case is very, very uncommon in practice, so I'm not all that 
worried by its ill effects.
Arnt