>>>> The legitimate mail that passes through my mail server comes from >>>> hosts / networks I might not hear from again for months, by which >>>> time I have to potentially wait 24 hours for the greylisting / mail >>>> server to try again. >> >> I run greylisting on an email server with several thousand email >> accounts and think its great. Reduced system load drastically. I >> also have a perl script I have wrote that runs every minute and looks >> at all messages that arrived in last 60 seconds and if spamassassin >> gave them a score of less then 5 it adds the sending MTA to a >> whitelist. It also removes any from the whitelist that have sent a >> message that scored over 5. The whitelist goes back 6 months and is >> continually refreshed by the script. The whitelist typically has 40K >> IP's in it. >> >> As a result no one even notices the greylisting, AFAIK... > > Is that the greylist whitelist or the SA whitelist?
It whitelists those IP's from being greylisted in future.
