On Wednesday 15 February 2006 02:24, James Wilkinson wrote: > Either Red Hat has whitelisted Demon (my ISP), or the Red Hat > implementation of greylisting learns which IP addresses will > properly retry e-mails, and doesn't bother delaying e-mails from > them. Presumably there's a timeout, so one e-mail may get > greylisted every three months or so. This "learning" is a normal function of greylisting and the timeout you mention is a configurable parameter. I don't know if it's still true but at one time it appeared that only some of the RH servers where using greylisting. Regards, Mike Klinke
