> Do you mean the server's side of the connection will have buffer  
> data in it?  That would mean the client sent DATA<CR><LF> followed  
> by header/body information, possibly even in the same packet,  
> without waiting for the reply from DATA.  The server could drop the  
> connection

I haven't been watching lately, but at some point a popular bot  
technique was to send the whole transaction without looking at the  
responses. After all, what do they care?

It was popular enough to generate the "greet_pause" feature in  
sendmail - as you must know. I don't know whether "greet_pause"-type  
detection is so wide-spread now that spammers have moved away from  
doing it, but I'll bet a lot still don't care and just blast away.


Mark.

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