Hi Alexey, > Recently, slapd has been choking under spam attacks,
Why that? Is your slapd from the internet accessible?! Does qmail-ldap perform ldap-lookups when they are not necessary? I'm not sure, but I belief not. Since you use qmail-ldap as s&f server only, qmail shouldn't perform ldap lookups. Simply try to stop slapd and look whats going on in the qmail log file :) Oskar
