[description of postgrey snipped]
The main advantage of this is that spammers and viruses have massive amount of email lists and just try to send it to as many people as possible. They are not going to wait and try to send the e-mail again, thus you effectively block many amount of spam and virus e-mail before it's even being processed by amavis / clamav / spamassasin, saving up system resources.
This is also the problem with greylisting... some services only attempt to send the email once and if it fails, give up completely. I don't remember if postgrey comes with a whitelist of IP addresses or not, but I do remember seeing a list that included things such as Southwest Airlines ticket confirmations and some amazon stuff.
Anyway, that's something to watch out for if it's relevant for you... _______________________________________________ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to "[EMAIL PROTECTED]"
