Re: greylisting done at end of headers, or end of daya (QUIT) ?

Tony Finch wrote:
> On Wed, 31 Jan 2007, Hector Santos wrote:
>> Good Guys are 100% SMTP compliant. Bad Guys are not. Thats the theory and its
>> true.
> 
> IME good guys are frequently not compliant. Broken HELO domains, invalid
> return paths, refusal to accept MAIL FROM:<>, etc. etc.
> 
> Tony.

Good point. I won't say "Frequently" myself, but sure, nothing is 
absolute.

In the market we are addressing, the anonymous one (no info to fall back 
on), we don't know who is "good person or bad person."   When I say 
"good guy" I don't necessarily mean one that is your friend.  Good in 
the sense they run a properly setup SMTP system and make no attempt to 
hide it.  You really don't know if they are "good or bad" people.

The fact is that "bad guys", the one that really aren't your friend, by 
far, are using SMTP non-complaint almost and if not, by choice in some 
form or fashion.  IMV the #1 dearth to SMTP progress is how do we deal 
with the legacy operation or one that behaves as one.  I think the day 
we decide how to deal with legacy software (in a IETF standard fashion), 
is the day we begin to make progress in the AVS market.

But sure, some of the "good guys" do have poorly setup systems, and 
guess what? For us, they fall in the same category as everyone else. 
For me, it is rare exception that I personally have to white list a node 
that for some reason or another has some "bad" state or information they 
can't do anything about.

--
HLS