kar...@mailcan.com: > On Fri, Apr 27, 2012, at 01:47 PM, Wietse Venema wrote: > > > I'd still think that a local check by Postfix to an 'auto-expiring hash > > > table' (unclear so far it that can be done) to which the 'bad' address > > > > Each Postfix SMTP server caches its own DNSBL lookup results. Those > > results are not shared with other Postfix processes. > > > > The in-process cache saves time when one message has multiple > > recipients, and the DNSBL check is done once per recipient in > > smtpd_recipient_restrictions. > > Does a single "Postfix SMTP server" process instance remain > resident/open across multiple connections? Or is a new one spawned for > each connection, or perhaps after some delay, load or other trigger?
Each Postfix SMTP server process is reused. http://www.postfix.org/postconf.5.html#max_use http://www.postfix.org/postconf.5.html#max_idle Wietse
