On Mon, 2009-12-14 at 14:24 +0000, Jaroslaw Grzabel wrote: > Martijn de Munnik wrote: > > > > http://www.postfix.org/ADDRESS_VERIFICATION_README.html#caching > > > > > > Hi Martin, > > Thank you for your reply. > > The only problem with that database is that if customer add some users > into his machine then database will always reject that email... let's > say for example: > somebody is spamming address like j...@domain.com > Obviously jon doesn't exist. But after a week company hire Jon and > creates an email for him. What postfix does ? Reject all messages until > I will not be notified and remove the database and let postfix to > recreate it again. > That doesn't satisfy me.
That is a problem, you can define different values for cache time for positive and negative hits. When you keep the negative cache time low that will not be much of an issue. > > Regards, > Jarek > >