Slightly OT: Greylisting success or failure stories?

[Aleksandar Milivojevic]

David Hoffman wrote:
> I looked for any discussion lists about greylisting and haven't found
> any, so I thought I might try asking here.
> 
> I'm considering adding greylisting to my postfix configuration, and
> some of the articles I have been reading about greylisting show that
> there can be any of several situations in which greylisting would not
> be a viable solution.

I've implemented greylisting on my basement mail server (two users, me 
and my wife).

It works OK for mail that comes to the server directly, but can't do a 
thing for forwarded emails.  If users have mail forwarded from server 
that doesn't implement greylisting to your server, the spam will get 
delivered.

Since addresses that I have forwarded are old ones that I still keep 
alive just in case some old friend wants to say hello (and basically are 
just collecting spam), I'm thinking about checking To and Cc headers 
when email comes from those servers.  If it doesn't contain correct 
address, reject it.  Personalized spam will still get through, 
unfortunately.

-- 
Aleksandar Milivojevic <amilivojevic at pbl.ca>    Pollard Banknote Limited
Systems Administrator                           1499 Buffalo Place
Tel: (204) 474-2323 ext 276                     Winnipeg, MB  R3T 1L7