On Tue, 2005-01-04 at 09:24, Peter Arremann wrote: > Thanks for your reply but I was hoping for more deail - maybe > someone from RH could respond... > > I know the concept but the question should probably better be - why can I send > 10 mails to the list one day witout issues, the next day I only send three - > the first and third go through without issues but the middle one gets > greylisted... > I think Mike is correct, you probably hit a different RH email server on your messages. One they have greylisting enabled, the other they probably don't yet. > Anyone any idea what does the fedora/rh list mail server base it's greylist > on? As far as I know all greylisting implementations use the same basic criteria, a tuple made up of sending servers IP address, recipient address, and senders address. That information is normally stored in some kind of table or database along with the times of initial contact. The next time that server tries to send a message with the same tuple it checks if the delay time has expired or not. If it has expired that tuple is auto whitelisted for some period of time, usually at least 24 hours if not 3 days. -- Scot L. Harris webid@xxxxxxxxxx George Orwell was an optimist.