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@xxxxxx> Pollard Banknote Limited Systems Administrator 1499 Buffalo Place Tel: (204) 474-2323 ext 276 Winnipeg, MB R3T 1L7
