Hello On 2004-07-20 Russell Coker wrote: > (host mail3av.westend.com[212.117.79.67] said: 450 <[EMAIL PROTECTED]>: > Recipient address rejected: Greylisted for 300 seconds... (in reply to > RCPT TO > command)) [EMAIL PROTECTED] > > Christian's mail server is broken.
Err, no. It's not a bug it's a feature :-) Called "greylisting". In opposide to normal black- and white-listing here postfix has an additional policy daemon that checks if the tripel "sending ip, from, to" is already in the database and if not, reply with a 450 aka "temporary(!) failure" code and take note of it. If it's a real mailserver and not a trojan-winXP-desktop then it will try it again in a couple of minutes. If it does the above tripel will be whitelisted for the next days/month/whatever. This mechnism has reduced our Spam amount drastically even on a mail account that had already SpamAssassin active. (It's installed at the ISP where I work and currently in beta testing. The nearby university already uses it with great effort. bye, -christian- -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]
